Domain: securityfocus.com
Stories and comments across the archive that link to securityfocus.com.
Stories · 365
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DMCA Doesn't Protect Garage Door Remotes
bgood writes "A federal judge in Illinois has ruled that a univeral remote garage door opener does not violate the DMCA. "Consumers have a reasonable expectation that they can replace the original product with a competing universal product without violating federal law," Judge Rebecca M. Pallmeyer said. "This was an attempt to expand the Digital Millennium Copyright Act to where it had never gone before," said Andrea B. Greene, attorney for privately held Skylink, the manufacture of the garage door opener in question. "[This is] very good news for consumers." Additional coverage at Wired and Security Focus." -
Hackers Track Down Banking Fraud
An anonymous reader writes "Noticing some commonalities in the spam flooding their email in-boxes, a small group of hackers set out to track down who was responsible. Along the way they uncovered a trail that led them to an organized gang of criminals halfway around the world, and right back to some of the largest financial institutions in the US, and their customers, that became the gang's prey. See the SecurityFocus story for more details." -
GameSpy Sends DMCA-Based C&D To Security Researcher
chowbok writes "Luigi Auriemma has found several security holes GameSpy software over the past few months. He has reported them all to GameSpy but never got a response... until today, when he got a threatening letter from their lawyers. It says he's violating the DMCA, he needs to cease-and-desist, yadda yadda yadda." Update: 11/12 21:09 GMT by S : GameSpy has now posted an official response from the company's founder, Mark Surfas. -
Scamming Spammer Hooks the Wrong Person
CrypticSpawn writes "Read on SecurityFocus, a 55 year old woman spammed an FBI computer crime agent. She got caught mailing off a credit card scam to AOL users." Her scam targeted AOL users with messages saying their credit cards were refused during the last billing cycle, and linked to a false billing center page which demanded private information. -
Scamming Spammer Hooks the Wrong Person
CrypticSpawn writes "Read on SecurityFocus, a 55 year old woman spammed an FBI computer crime agent. She got caught mailing off a credit card scam to AOL users." Her scam targeted AOL users with messages saying their credit cards were refused during the last billing cycle, and linked to a false billing center page which demanded private information. -
Using Honeypots to Fight Worms
scubacuda writes "Laurent Oudout, an active member of the French Honeynet Project (part of the Honeynet Alliance), has written a paper evaluating the usefulness of using honeypots in fighting Internet worms. (Imagine a well-constructed honeypot framework capturing a worm, redirecting worm traffic to fake services, and launching counter attacks to clean infected hosts!)" -
A Database of Patched Software?
Midnight Warrior asks: "I am one system administrator for what is an organization of dozens of LANs. Together, we all must keep our machines patched. Now we can all watch CVE, frequent securityfocus.com, or let LWN [Updated vulnerabilities section] bring things together. LWN does a fabulous job, but I'm looking for something bigger and more personalized that doesn't require the system be on the internet. Freshmeat, SourceForge, and Google are all NULL on this question: is there a database, and scraping agents in existence that will let one person oversee dozens of OS installations, a mish-mash of software packages, and an even worse level of up-to-date patching exist so that when a new vulnerability against, say, OpenSSH comes out, I can look up which systems need to be tested and patched? My work should be limited to maintaining OS (not just Linux distros), software versions, and current patch lists. This is a classic database problem, but has someone already solved it?" -
FBI Investigating Lamo Via Patriot Act Provision
umm qasr writes "Mark Rasch, a columnist for SecurityFocus wrote in his Register-reprinted column that the FBI has sent a letter, invoking provisions of the Patriot Act, to journalists reporting on the Adrian Lamo case: 'The letters warn them to expect subpoenas for all documents relating to the hacker, including, apparently, their own notes, e-mails, impressions, interviews with third parties, independent investigations, privileged conversations and communications, off the record statements, and expense and travel reports related to stories about Lamo.' Good to see that our First Amendment rights are being upheld by the FBI." -
New Vulnerabilities in Portable OpenSSH
An anonymous reader writes "The OpenSSH team has uncovered multiple exploitable vulnerabilities in the days-old portable release of OpenSSH. That's right folks: time to patch *again*. 3.7.1p2 is now available. Instructions and mirror list here. Please note that this vulnerability only affects *portable* OpenSSH--so if you are running OpenBSD, you're safe. This vulnerability apparently has to do with PAM, so you can use the 'UsePam no' option in your config file. Info on the advisory here and here." -
New Vulnerabilities in Portable OpenSSH
An anonymous reader writes "The OpenSSH team has uncovered multiple exploitable vulnerabilities in the days-old portable release of OpenSSH. That's right folks: time to patch *again*. 3.7.1p2 is now available. Instructions and mirror list here. Please note that this vulnerability only affects *portable* OpenSSH--so if you are running OpenBSD, you're safe. This vulnerability apparently has to do with PAM, so you can use the 'UsePam no' option in your config file. Info on the advisory here and here." -
Remote Root Exploit In lsh
skookum writes "After last week's OpenSSH patch-fest, a lot of people suggested GNU lsh as a replacement. Unfortunately, it seems that the lsh team has recently discovered a heap overflow bug of their own that can lead to compromise. An exploit was posted to BugTraq two days ago. Happy patching." -
Adrian Lamo Charged With Hacking
retro128 writes "Drifting around the US from state-to-state, Adrian Lamo has been making news for some time with his 'White Hat' hacking exploits. His highest-profile hacking has included Excite@Home and Yahoo. After he would break into a network, he would call up those in charge of it and help them fix the holes. So far, it has earned him praise from the administrators of those systems, but now SecurityFocus is carrying the story that the FBI has filed charges against him, and currently has his parents' house staked out. The records are sealed, so nobody knows who is responsible, but Lamo suspects the New York Times initiated the investigation when they found out how deep into their system he got." -
Adrian Lamo Charged With Hacking
retro128 writes "Drifting around the US from state-to-state, Adrian Lamo has been making news for some time with his 'White Hat' hacking exploits. His highest-profile hacking has included Excite@Home and Yahoo. After he would break into a network, he would call up those in charge of it and help them fix the holes. So far, it has earned him praise from the administrators of those systems, but now SecurityFocus is carrying the story that the FBI has filed charges against him, and currently has his parents' house staked out. The records are sealed, so nobody knows who is responsible, but Lamo suspects the New York Times initiated the investigation when they found out how deep into their system he got." -
Racketeering Suit Filed Against DirecTV
dki writes "Another attempt is being made to head off the lawsuits DirecTV has been filing against purchasers of smart-card programmers. This time, lawyers have filed suit under the mob-busting Racketeer Influenced and Corrupt Organizations (RICO) federal organized crime statute, accusing DirecTV of organized extortion, money laundering and fraud. Background on the ongoing saga can be found here and here." -
Hacking By Subpoena
solidox writes "SecurityFocus has an article on how Alwyn Farey-Jones instructed his lawyer to issue a subpoena against ICA to get all their emails. ICA's ISP, NetGate, complied and gave them over 300 emails from ICA employees. When ICA found out about this they sued and the court ruled that this was a violation of the Computer Fraud and Abuse Act. This could be good news for those trying to fight off the RIAA subpoenas to isps to catch file-sharers." -
Hacking By Subpoena
solidox writes "SecurityFocus has an article on how Alwyn Farey-Jones instructed his lawyer to issue a subpoena against ICA to get all their emails. ICA's ISP, NetGate, complied and gave them over 300 emails from ICA employees. When ICA found out about this they sued and the court ruled that this was a violation of the Computer Fraud and Abuse Act. This could be good news for those trying to fight off the RIAA subpoenas to isps to catch file-sharers." -
Iran-Specific Version of Anonymizer Unblocks Net Access
thelaw writes "Securityfocus has an article explaining a new anti-censorship proxy set up for Iran through Anonymizer, similar to one for Chinese citizens (did anyone know we had a proxy for Chinese citizens?). An interesting quote: '"In China we're continually monitoring the state of the proxy, and when we see the traffic drop off, we change the proxy's address, usually within 24 hours," says Berman. "In Iran, we're prepared to change the proxy address every day if necessary."'" -
Iran-Specific Version of Anonymizer Unblocks Net Access
thelaw writes "Securityfocus has an article explaining a new anti-censorship proxy set up for Iran through Anonymizer, similar to one for Chinese citizens (did anyone know we had a proxy for Chinese citizens?). An interesting quote: '"In China we're continually monitoring the state of the proxy, and when we see the traffic drop off, we change the proxy's address, usually within 24 hours," says Berman. "In Iran, we're prepared to change the proxy address every day if necessary."'" -
Microsoft Worms Crash Ohio Nuke Plant, MD Trains
stieglmant writes "For everyone who thought the 'blackout of 2003' was bad, how about this, according to an article at SecurityFocus, and another article at The Register, 'The Slammer worm penetrated a private computer network at Ohio's Davis-Besse nuclear power plant in January and disabled a safety monitoring system for nearly five hours.'" Russell writes "Maryland MARC Train Service was shut down most of Wednesday morning due to what sounds like the MS-Blast worm or one of its variants. The local Baltimore news reports that the cause was a signal malfunction but CSX, whose communications system runs the tracks, has an article describing the shutdown as a result of 'a worm virus similar to those that have infected the systems of other major companies and agencies in recent days'. This indicates that the network that the train signaling stations are on is not protected by firewalls, at least to block ports 135 and 444 where the DCOM vulnerability is attacked. Wow, taken to the extreme, the exploitation of their systems could have caused a train collision and injury or death to hundreds of Maryland and Virginia commuters." -
Talk About A Security Hole, Go To Jail?
Nu11.org writes "According to a SecurityFocus article, 'Federal prosecutors in California went too far when they put a man in prison for disclosing a website security hole to the people at risk from it.'" According to the article, "...by explaining how the vulnerability worked, and why customer data was at risk, prosecutors asserted, the security specialist 'impaired the integrity' of the affected network", citing the case of Bret McDanel and his former employer, Tornado Development, Inc. We've discussed the disclosure of software exploits recently. -
Three Snort Books Reviewed
Eric Stats writes "Working as a Network Engineer for web-hosting company that prides itself on uptime and network availability, and moonlighting as a part-time Linux administrator, my managers and clients are starting to expect a level of information security knowledge from me. I decided that if I wanted to take my career to the next level, I needed to develop some security-specific skills. I heard a lot about the open source Intrusion Detection System (IDS), Snort from friends and co-workers (mostly that it was a pain to get running, and an even bigger pain to understand what it was doing)." To get past those frustrations, Eric looked at two more books on Snort (and compares them to the already-reviewed Intrusion Detection with Snort ); read on below for his take on what each offers. Intrusion Detection with SNORT: Advanced IDS Techniques Using SNORT, Apache, MySQL, PHP, and ACID; Intrusion Detection with Snort; Snort 2.0 Intrusion Detection author (See each) pages (See each) publisher (See each) rating (See each) reviewer Eric Stats ISBN (See each) summary (See each)I ran Snort at home for a while, using the online docs, but I could never get a handle on which output plugin to use (When to log? When to alert?), how to email alerts to myself (I later found out Snort doesn't natively do this), and how to create signatures from packet captures (no online docs at all for this). When I did get The Pig running, it filled up my log directory with thousands of small alert files, which ended up being in tcpdump format. This frustrated the hell out of me, so I decided I needed to find a good book on Snort, as the online docs simply did not describe how to use Snort from start to finish.
In the past few months, an assortment of books have come out on Snort. Because it has begun to eclipse closed-source, multimillion dollar IDSes in terms of raw performance and features, much attention is currently focused on Snort. Naturally, when an open source project achieves this level of notoriety, publishers, venture capitalists, and corporations want to get in on the game. The flood of Snort books is a testament to this, but it doesn't mean they were all created equally. This book review covers the three books on Snort currently available (we will see another two Snort books later this winter). It covers what is good about them, what is bad, and who the target audience is for each. If you are looking to learn intrusion detection the open source way, or simply do not have a million-dollar IT security budget, these books are a good starting point.
Each of these three books serves a different purpose and consequently is appropriate for a different reader. In summary, Rafeeq Rehman's Intrusion Detection with Snort: Advanced IDS Techniques Using SNORT, Apache, MySQL, PHP, and ACID presents a concise, quick-start guidebook to getting Snort up and running fast. He doesn't delve into the details of Snort, and this book makes a perfect choice for a reader who wants to get The Pig up and running quickly and move on to something else.
The whole gaggle of authors that put together Snort 2.0 Intrusion Detection created a much-needed user manual for Snort. This book makes for good desktop reference, but assumes you understand the core concepts of intrusion detection, or have significant field experience with Snort. It is also somewhat convoluted to read; I suppose it's inevitable when you have 12 authors working on a single book, it is going to come out somewhat disjointed and jumbled. If I hadn't read the other two books first, I doubt I would have been able to piece together what this book is talking about in places. (Such as referring to Barnyard logs in one chapter and "unified binary format" in another; how is the reader going to know they are the same?)
Lastly, Jack Koziol's Intrusion Detection with Snort is a guidebook for using Snort in the real world, either on small networks or in large corporate settings. Like any security tool, Snort is only as effective as its operator. Snort can do an enormous number of things, but if you don't understand the "how and why" you aren't going to be able to apply your knowledge in unexpected, different, or new situations. Koziol's book bridges the gap and teaches you the nitty-gritty Snort details not found in online docs, as well as how to apply your newfound IDS knowledge in practice. This book does lack in terms of screenshots and diagrams, which can be frustrating at points. Instead of a paragraph of text, a simple diagram would have sufficed.
Intrusion Detection with SNORT: Advanced IDS Techniques Using SNORT, Apache, MySQL, PHP, and ACID author Rafeeq Rehman pages 288 publisher Prentice Hall rating 7/10 ISBN 0131407333I first picked up Rehman's Intrusion Detection with Snort: Advanced IDS Techniques Using SNORT, Apache, MySQL, PHP, and ACID. Rehman's book is also a member of the Bruce Perens Open Source Series. All of the books in his series are published under the OPL. Overall, Rehman's book served as a good intro to Snort. I followed the examples, used some of the custom startup and log-rotation scripts, and got Snort working for the first time. I also learned of ACID, which is a PHP-based GUI for Snort, put out by Carnegie Mellon's CERT/CC. It makes managing alerts from Snort much less time-intensive. It was an exciting experience, but the book left me in the dark on a number of concepts that I knew I needed to learn. I still didn't understand what I was getting out of Snort; I had so many alerts I couldn't "tune out the noise." I didn't know when to use log or alert plugins, so I just turned on both for safety's sake. I also found that Snort was dropping packets (meaning it wasn't able to keep up with the traffic load going to my webservers hosted at home), but didn't find any way to fix this problem. This setup was fine for experimenting at home, but I didn't feel I would be able to use Snort in a mission-critical corporate setting yet.
Intrusion Detection with Snort author Jack Koziol pages 400 publisher SAMS Publishing rating 9/10 ISBN 157870281XI thumbed through Jack Koziol's Intrusion Detection with Snort at the bookstore, and it seemed to have some more detailed descriptions of using Snort. It also had a lot of the planning, deployment, and maintenance activities you never think of until you are faced with one at 2 a.m. (such as how to upgrade Snort in an organized manner after a vicious integer overflow exploit is released for a core Snort component). It is also the most popular Snort book, so I figured I would buy it. When I took it home, I learned where to place Snort on a network, and what advantages and disadvantages there are to different IDS sensor placement strategies, something I had never considered.
Koziol's book also had the technical detail I was in desperate need of. I learned how to use Barnyard to spool alerts, which keeps Snort from dropping packets. I got to write my own attack signatures from scratch by using Ethereal packet captures in an controlled lab environment. I created a targeted ruleset; it enables specific attack signatures based on what I actually have running on my network, simply using nmap and some complicated perl scripts. The targeted ruleset went a long way to reducing false alerts, and is now a selling product from the Snort commercial vendor, Sourcefire. I finally got email alerts working using syslog-ng with Snort. The book ends with some more advanced content, namely using Snort as an Intrusion Prevention device. You can setup Snort to block packets that match a signature, using Inline Snort, or you can have Snort reconfigure routers and firewalls to block offending IP addresses, using SnortSam. I've experimented with Inline Snort as part of a honeypot, but, as the author points out, this is not yet production-safe, as it can easily be used by attackers to disrupt network availability.
Snort 2.0 Intrusion Detection authors Jay Beale, Anne Carasik, Aidan Carty, Scott Dentler, Adam M. Doxtater, Wally Eaton, Jeremy Faircloth, James C. Foster, Vitaly Osipov, Jeffrey Posluns, Ryan Russell, Brian Caswell pages 485 publisher Syngress rating 4/10 ISBN 1931836744The final Snort book in this review is Snort 2.0 Intrusion Detection. This book has a lot of the screenshots and figures that the Koziol and Rehman books leaves out. It also contains a lot of useful diagrams, about one for every other page, and a CD-ROM with all of the Snort source and a pdf version of the book. This book, and the Koziol book, cover Snort version 2.0, which isn't all that much different from version 1.9 covered in the Rehman book. Still, it is nice to have the most up-to-date documentation, but it doesn't make the Rehman book any less effective. This book has the most reference material in it, over 500 pages' worth, and it has very organized user manual-like descriptions of important Snort components (preprocessors, output plugins, and rules). Keep in mind that this book was created more as a user manual rather than an implementer's guide. You aren't going to see planning, deployment, and maintenance activities as well as technical deployment examples, as in the Koziol book. And, you aren't going to find a concise quick-start guide such as the Rehman book.
In summary, you aren't going to find anything in this book that isn't in the other two. What you will find is lengthy descriptions, and a lot more screenshots. As stated before, Snort 2.0 Intrusion Detection was written by 12 different people (one of them a Sourcefire employee and Snort.org website maintainer, Brian Caswell). This is obviously done by the publisher to get the book out as fast as possible, which is important for technology book publishers as books are outdated quickly, but has the end result of a disjointed book that contradicts itself in many areas. An example: one author stresses how deadly important it is for us to only use the latest Snort version, while another tells us to use the CDROM that comes with the book, which contains an outdated version of Snort.
You can clearly tell a different authors worked on different chapters, as the style and format change frequently. You can also tell that the authors didn't talk to each other much, as you will find one author referring to something in one chapter (unified binary format) that he expected to have been explained in a previous chapter. In print, the concept was not explained until later, which can be really frustrating if you are not a Snort pro. Additionally, there are enough grammatical errors in the book to be distracting, and, much like a vendor-provided user manual, the chapters don't logically flow from one to the next. If you do purchase this book, this slashdotter would recommend it as a supplement to either the Rehman or Koziol book.
You can purchase Intrusion Detection with SNORT: Advanced IDS Techniques Using SNORT, Apache, MySQL, PHP, and ACID , Intrusion Detection with Snort , and Snort 2.0 Intrusion Detection from bn.com. Slashdot welcomes readers' book reviews -- to see your own review here, read the book review guidelines, then visit the submission page. -
Honeytokens: The Other Honeypot
martyros writes "I just read a fascinating article by Lance Spitzner securityfocus.com about a concept he calls honeytokens. The idea is similar to that of a honeypot, which he defines as "an information system resource whose value lies in unauthorized or illicit use of that resource". Rather than having a computer that's designed to be broken into, however, you have say, a record in a database or a file has no legitimate use; ergo, if anyone uses it, it must be illegitimate. An example he gives: adding a record to the hospital database for a guy named "John F. Kennedy". It doesn't correspond to a real person, so no one has any business looking at the file. If someone does access it, you know that they're abusing their privileges somehow. The article has several other clever examples, which I found very thought-provoking." -
Windows Vulnerabilities Revealed, Patched
Saint Aardvark writes "A big MS Windows remote vulnerability has just hit BugTraq. It concerns a buffer overflow in MS' DCOM, and affects Win2k through Server 2003; here's the security advisory from Microsoft. This is in addition to an earlier vulnerability concerning conversion from HTML to RTF - there's a separate security advisory from Microsoft for this one, and it affects Win98 and NT 4.0 through Server 2003. Patch early, patch often." There's also a CNET News story with a little more explanation on the newest vulnerability. -
Windows Vulnerabilities Revealed, Patched
Saint Aardvark writes "A big MS Windows remote vulnerability has just hit BugTraq. It concerns a buffer overflow in MS' DCOM, and affects Win2k through Server 2003; here's the security advisory from Microsoft. This is in addition to an earlier vulnerability concerning conversion from HTML to RTF - there's a separate security advisory from Microsoft for this one, and it affects Win98 and NT 4.0 through Server 2003. Patch early, patch often." There's also a CNET News story with a little more explanation on the newest vulnerability. -
Study: Wi-Fi users Still Don't Encrypt
Shackleford writes "SecurityFocus has an article saying that two days of electronic eavesdropping at the 802.11 Planet Expo in Boston last week sniffed out more evidence that most Wi-Fi users still aren't securing their networks. Security vendor AirDefense set up two of its commercial 'AirDefense Guard' sensors at opposite corners of the exhibit hall at the Boston World Trade Center, the site of the conference, and for two days analyzed the traffic flowing between conference-goers and 141 unencrypted access points set up by the conference for public use, and by vendors on the floor. What they found was that users checking their e-mail through unencrypted POP connections vastly outnumbered those using a VPN or another encrypted tunnel. Only three percent of e-mail downloads were encrypted on the first day of the conference, 12 percent on the second day." -
Study: Wi-Fi users Still Don't Encrypt
Shackleford writes "SecurityFocus has an article saying that two days of electronic eavesdropping at the 802.11 Planet Expo in Boston last week sniffed out more evidence that most Wi-Fi users still aren't securing their networks. Security vendor AirDefense set up two of its commercial 'AirDefense Guard' sensors at opposite corners of the exhibit hall at the Boston World Trade Center, the site of the conference, and for two days analyzed the traffic flowing between conference-goers and 141 unencrypted access points set up by the conference for public use, and by vendors on the floor. What they found was that users checking their e-mail through unencrypted POP connections vastly outnumbered those using a VPN or another encrypted tunnel. Only three percent of e-mail downloads were encrypted on the first day of the conference, 12 percent on the second day." -
RFID Explained
SecurityFocus has a nice column summarizing the last year's worth of stories about RFID. Of course, you, diligent Slashdot reader, have read about many of these already. But for your slacker friends that need an RFID education in one easy-to-digest article, here you go. -
55808 Trojan Analysis
espo812 writes "This analysis of the 55808 trojan that has been circling the internet was just posted on Bugtraq . The good news (i guess?) is that apparentally it is just a proof of concept distributed scanner. The bad news is they think they just caught a copycat version of the origional trojan. ISS also has an analysis." -
55808 Trojan Analysis
espo812 writes "This analysis of the 55808 trojan that has been circling the internet was just posted on Bugtraq . The good news (i guess?) is that apparentally it is just a proof of concept distributed scanner. The bad news is they think they just caught a copycat version of the origional trojan. ISS also has an analysis." -
Creating an Open Alternative to Bugtraq?
mbogosian asks: "I am not a sysadmin, nor am I a security expert, but I appreciate those who are. In response to a recent story, I went out and registered two domain names: opentraq.org and opentraq.net. I am hereby throwing down the gauntlet: I am willing to have them resolve to DNS servers belonging to a group of volunteers who wish to start and maintain an Open alternative to security services like BugTraq and others offered at the SecurityFocus website without being encumbered by the OIS Security Vulnerability Reporting And Response Process. I will continue to pay the renewal fees for the names as long as someone wants to continue the the effort. After the project becomes established and is maintained by a reputable (i.e., non-commercial) group of volunteers, I am willing transfer ownership of the domains to that group at no cost. Feel free to contact me if you are interested. Let the discussion begin! " Do you feel such a thing is necessary at this time? Why or why not? -
The Enemy Within: Firewalls and Backdoors
hrbrmstr writes "SecurityFocus is running an article on firewalls and backdoors on their InFocus site. They provide info on firewall types, backdoor classifications, some examples of real backdoors and tips on mitigating their use on your network." Some good topics explained for the beginner, and it's a nice refresher for the veteran admin as well. -
The Enemy Within: Firewalls and Backdoors
hrbrmstr writes "SecurityFocus is running an article on firewalls and backdoors on their InFocus site. They provide info on firewall types, backdoor classifications, some examples of real backdoors and tips on mitigating their use on your network." Some good topics explained for the beginner, and it's a nice refresher for the veteran admin as well. -
Confronting Address Space Hijackers
Tawn writes "There's a great story on SecurityFocus about hijackers taking over large allocations of IPv4 space with forged documents and false business fronts. Los Angeles County and some big multinationals have had /16's pulled out from under them in the last few months, and used to inject spam. ARIN and network operators are trying to get a handle on the problem. The owner of a webhosting company that wound up with L.A. County's /16 called it 'borrowed space,' and said he paid $500 for it to a guy he met online." -
Confronting Address Space Hijackers
Tawn writes "There's a great story on SecurityFocus about hijackers taking over large allocations of IPv4 space with forged documents and false business fronts. Los Angeles County and some big multinationals have had /16's pulled out from under them in the last few months, and used to inject spam. ARIN and network operators are trying to get a handle on the problem. The owner of a webhosting company that wound up with L.A. County's /16 called it 'borrowed space,' and said he paid $500 for it to a guy he met online." -
Foundstone Shoe On Other Foot
Cimmer writes "One of the premier hack shops (to pun or not to pun) gets busted for unethically ethically hacking. After filing a lawsuit against former employee JD Glaser for supposedly jacking company source code, Foundstone gets nailed for massive internal software piracy. Tonight's entree: Foot in Mouth." -
Java/Script Alert: Cross-Platform Browser Vulnerability
Ant writes "Synopsis: Opera, Mozilla & Netscape with javascript enabled are vulnerable to remote command execution. This has been tested on Microsoft, and many many Unices. Macintosh may also be vuln. Ironically enough, IE is unaffected." Update: 06/08 23:56 GMT by H : The problem seems to be one in the Java security model itself; but the evidence seems to be that if you turn off JavaScript, you turn off the vulnerability. Update: 06/09 00:56 GMT by T : According to this followup message from Mozilla security group member Daniel Veditz, the problem is actually one that's already been fixed in Mozilla 1.3, and not a remote command execution vulnerability at all. (Thanks to reader Jared Klett and others.) -
Group Releases Anti-Disclosure Plan
dki writes "SecurityFocus reports that the Organization for Internet Safety (OIS), a group of 11 of the largest software and security companies, has released a public draft of a proposed bug disclosure standard. The document outlines a process for reporting and disclosing bugs that aims to eliminate releasing exploits to the general public. Not surprisingly, the OIS was founded out of a Microsoft-hosted security conference. Comments on the draft will be accepted until July 4th; the final copy will be released at the Black Hat Conference in Las Vegas." -
Group Releases Anti-Disclosure Plan
dki writes "SecurityFocus reports that the Organization for Internet Safety (OIS), a group of 11 of the largest software and security companies, has released a public draft of a proposed bug disclosure standard. The document outlines a process for reporting and disclosing bugs that aims to eliminate releasing exploits to the general public. Not surprisingly, the OIS was founded out of a Microsoft-hosted security conference. Comments on the draft will be accepted until July 4th; the final copy will be released at the Black Hat Conference in Las Vegas." -
Fyodor Answers Your Network Security Questions
You asked nmap creator Fyodor many excellent questions, and his answers (below) are just as excellent. You'll want to set aside significant time to read and digest this interview, because Fyodor didn't just toss off a few words, but put some real time and energy into his answers.1) Interesting stories involving nmap?
by NeologicNmap has obviously become a huge success in the *nix world. I would wager that practically all sysadmins and security folk use nmap. With this sort of use by such creative and lazy people, there must have been some interesting stories involving nmap, perhaps unusual uses of it, or funny anecdotes. Are there any you would like to share?
Fyodor
The coolest use ever was undoubtedly when Trinity used it to try and save the human race :). But the use I find most gratifying are the Chinese students and residents who have written me about how they use Nmap to locate open proxies. These proxies allow for surfing the uncensored Internet, including the news, educational, pornographic, religious, open source software, government, political, search engine, and human rights sites that are blocked by the Great Firewall of China.
Many of the best features in Nmap came from the user community in ideas if not implementation. For example, the protocol scan (-sO) determines what IP protocols (TCP, UDP, GRE, etc.) a host is listening for. I had not thought of this, but the idea and patch came out of the blue one day in an email from Gerhard Rieger. On another day, a guy named Saurik sent a patch called Nmap+V that allows Nmap to do basic service/version fingerprinting against open ports. It has attracted a cult following, and I plan to add similar functionality to Nmap this year. The initial Windows port by eEye arrived similarly. Despite all these great suggestions, certain other user-contributed ideas are not on the agenda.
Then there are a small handful of users who detect problems nobody else would ever notice, like 4 byte/host memory leaks. They send me error messages with notes saying the bug happens "about once per 700,000 IPs". I have no idea what these guys are up to, but some have been sending me this kind of mail for years. They can't be spammers, as they are intelligent and also use more sophisticated scan techniques than you would need to just find SMTP servers.
2) Recent increases in anal-retentiveness...?
by ZerielThere's been a marked increase in system administrators thinking that anything even remotely resembling a network scan is eeeeevil (case in point, last year I almost got kicked out of college for scanning port 80 on my dorm subnet looking for interesting websites to read)...
What do you think can be done to make scanning IP addresses/ports have less of a negative stigma? This is in the same sort of category as legit vs. illegit uses of anything else (P2P, whatever)--what's the rationale for punishing something that could maybe lead to criminal activity, and how can we make network scanning tools have practical uses again?
Fyodor
That is an excellent question, and one that concerns me as well. But first, I think your final statement is too extreme. I would guess 90% of network scanning is non-controversial. You will rarely be badgered for scanning your own machine or the networks you administer. The controversy comes when scanning other networks. There are a lot of (good and bad) reasons for doing this sort of network exploration. Perhaps you are scanning the other systems in your {dorm, department, cable LAN, conference LAN} to look for publicly shared files (FTP, SMB, WWW, etc.). Or perhaps your just trying to find the IP of a certain printer. Maybe you scanned your favorite web site to see if they are offering any other services, or because you are curious what OS they run. Perhaps you are just trying to test connectivity, or maybe you wanted to do a quick security sanity-check before handing off your credit card details to that ecommerce company. You might be conducting Internet research, or be bored on a rainy afternoon. Or are you conducting reconnaissance in preparation for a breakin attempt?
The remote administrators rarely know your true intentions, and do sometimes get suspicious. The best approach is to get permission first. I've seen a few people with non-administrative roles land in hot water after deciding to "prove" network insecurity by launching an intrusive scan of the entire company or campus. Admins tend to be more cooperative when asked in advance than when woken up at 3AM by an IDS alarm claiming they are under massive attack.
You compared Nmap to P2P tools in having a "negative stigma". In both cases, one effective way to fight the stigma is to limit your own use to "legitimate" purposes. Use BitTorrent to download RedHat ISOs, but not Matrix Reloaded. Use Nmap to secure and monitor your computers, but not to attack other networks. And if you decide to attack other networks anyway, please be courteous and set the evil bit.
Now I'll admit that I don't always obtain explicit permission before scanning other networks. I don't believe (but IANAL) that a simple port/OS scan of a remote system is or should be illegal. Any machine connected to the Internet will be scanned so often that most admins ignore such "white noise" anyhow. But scan other networks often enough, and someone will eventually complain. So my advice would be:
- Don't do anything controversial from your work or school connections. Even though your intentions may be good, you have too much to lose if someone in power (boss, dean) decides you are a malicious cracker. Do you really want to explain your actions to someone who may not even understand the terms "port scanner" or "packet"? Spend $10 bucks a month for a dialup or shell account. You didn't really violate this rule, as scanning your dorm subnet for just port 80 should not even be remotely controversial!
- Target your scan as tightly as possible. If you are only looking for web servers, specify -p80 rather than scanning all 65,535 TCP ports on each machine. If you are only trying to find available hosts, do an Nmap ping scan. Don't scan a /16 when a /24 will suffice. The random scan mode now takes an argument specifying the number of hosts, rather than running forever. So consider -iR 1000 rather than -iR 10000 if the former is sufficient. Use the default timing (or even "-T Polite") rather than "-T Insane".
- Nmap offers many options for stealthy scans, including source-IP spoofing, decoy scanning, and the more recent Idle Scan technique. But remember there is always a trade-off. You will be harder to detect if you launch scans from an open WAP far from your house, with 17 decoys, while doing followup probes through a chain of 9 open proxies. But if anyone (such as Tsutomu Shimomura) does track you down, they will be mighty suspicious of your intentions.
I occasionally consider adding some sort of "notification packet" prior to a scan that would give hosts the chance to respond and opt-out. This would be like the /robots.txt directives currently used to control polite Web robots. Perhaps the format could even include a text string that IDS systems could log, like: nmap -sS -p- -O -m "Direct questions about this scan to ops at x3512" 192.168.0.0/16 nmap -sS -p- -O -m "mY n4m3 iZ Zer0 |<00L and I'll 0wn j0o%#@" targetcompany.com/24 Of course Nmap would have an option to omit the notification or to send it and ignore any negative responses. Some scanners, such as ISS Internet Scanner already send out NetBIOS popup messages to scanned hosts by default, and other scanners use syslog. I won't be adding any features like this to Nmap unless I see substantial demand and the obvious issues are worked out.
3) OS fingerprinting
by neoThothWhat are the latest advances in fingerprinting networked devices that seem most promising to you? I have started reading papers on HTTP fingerprinting and such and wonder how these will figure into the NMAP architecture. What are the most elusive OS's that aren't on the NMAP OS fingerprint database?
Fyodor
There are a number of OS detection techniques I hope to add this year. One is to guess (or calculate) the initial TTL of response packets, since this varies by OS. Some operating systems also "reflect" your own chosen TTL under various circumstances. Then there are some newer TCP options, such as selective ack that I might test for. Explicit Congestion Notification (RFC 2481/3168) also shows promise. I'll probably add all of these at once later this year, after discussions with the Nmap-dev list. If you wish to participate, you can join that list by sending a blank email to nmap-dev-subscribe@insecure.org. There is also a low volume, moderated list for announcements about Nmap, Insecure.org, and related projects. You can join the 15,000 current members by mailing nmap-hackers-subscribe@insecure.org [archives].
While adding new fingerprinting techniques is fun and exciting, improving the signature database often ads more value. The DB now contains more than 850 signatures, from the Acorn RISC OS and Aironet wireless LAN bridge to the ZoomAir wireless gateway and Zyxel Prestige routers. We're talking gaming consoles, phones, PBX systems, PDAs, webcams, networked power switches, you name it! New fingerprints are submitted daily.
Application level fingerprinting (including HTTP) is coming. I usually regret stating dates, but I hope to develop this functionality within the next 3 months.
4) Stepping into a network security career
by Anonymous CowardI'll be graduating this month with a shiny new BS in Computer Science. I've done plenty of Unix sysadmin work throughout college and even deployed some high-interaction honeynets. I'm very interested in network security and systems programming. Do you have any advice for people in my situation who want to head into a career in network security?
Fyodor
Congratulations on your graduation! Unfortunately (for newcomers), the security field is one that often expects substantial experience and references. This is partly because these jobs require extraordinary trust, and also because of an aversion to mistakes. Everyone makes mistakes, but they can be extraordinarily costly in security and neophytes tend to make more of them. But don't lose hope! Talented security minds are still in very high demand, just be aware that you will have to work even harder to prove yourself.
Here are my suggestions for anyone starting out in network security, whether for fun or profit:
Step 1: Learn everything you can
- You may wish to start with reading a general overview of security, such as Practical Unix and Internet Security 3rd Edition.
- Reading alone won't teach you much. Hands-on experience is critical, so I would set up at least a basic test network. At the very minimum you should have a Unix box or two and a Windows machine (because these are very common in the real world). You can use very cheap machines, or even emulate a large network with virtualization software such as VMWare.
- Next you should learn more about how attacks are performed. Take a look at the excellent and free Open Source Security Testing Methodology Manual (OSSTMM). This document aims to provide a comprehensive framework for security testing. But it mostly lists tasks to perform, without specifying how to do so. You will gain a lot from this manual if you research the tasks you don't know how to complete, and if you actually try performing the tasks on your test network. If this manual is too curt or hard to follow, you could try a more verbose book on vulnerability assessment, such as Hacking Exposed 4th Edition.
- Now that you understand many of the general security ideas, it is
time to get current. This is one area that has actually become easier
in the last decade. The thinking used to be that vulnerability
information should only be distributed to well-known and trusted
administrators and security researchers through private digests such
as Zardoz. This was a disaster
for many reasons, and the full disclosure movement was born. In the
last couple of years things have started to shift toward more limited
("responsible") disclosure and there is also a disturbing
pay-money-for-early-disclosure trend. But information is still much more
available than it used to be. Most of the news is carried on mailing
lists, and I archive the ones I consider the best at Lists.Insecure.Org. You
must subscribe to Bugtraq, and I would also highly recommend
pen-test, vuln-dev, and security-basics. Read at least the last 6-12
months of archives. Choose other lists that correspond to your
interests. SecurityFocus also
offers a security-jobs list which is an excellent resource for finding
jobs or just understanding what employers desire.
There are two major reasons for reading Bugtraq. One is that you must react quickly to new vulnerabilities by patching your servers, notifying your clients, etc. You can get this by simply scanning the subject lines or advisory summaries for bugs that directly apply to you. But then you will miss out on another crucial purpose of Bugtraq. Actually understanding a vulnerability helps you defend against it, exploit it, and identify/prevent similar bugs in the future. When you are lucky, the advisory itself will provide full details on the bug. Check out this excellent recent advisory by Core Security Technologies. Note how they describe exactly how the Snort TCP Stream Reassembly vulnerability works in detail and even include a proof-of-concept demonstration. Unfortunately, not all advisories are so forthcoming. For bugs in Open Source software, you can understand the problem by reading the diff. The next step is to actually write and test an exploit. I would recommend writing at least one for each general class of bug (buffer overflow, format string, SQL injection, etc.) or whenever a bug is particularly interesting.
Be sure to read the latest issues of Phrack and the research papers posted to the mailing lists. Send your comments and questions to the authors and you may start interesting discussions. Read well-regarded books on the security topics that interest you most.
I can't emphasize enough that you should intersperse hands-on work with all of this reading. Install unpatched RedHat 8 (or whatever) and run Nmap and Nessus against it. Then compromise it remotely, maybe via the latest Samba hole. Start out with a prewritten exploit from Bugtraq, which isn't quite as easy as it sounds. You may have to modify the 'sploit to compile, brute force the proper offset, etc. Then break in again using a different technique, and your own exploit. Install Ethereal and/or tcpdump and ensure you understand the traffic on your network during both your exploitation and normal network activity. Install Snort on an Internet-facing machine and watch the attacks and probes you'll experience. Wander around your neighborhood with Kismet, Netstumbler, or Wellenreiter on your Laptop or PDA to look for open WAPs. Install DSniff and execute an active MITM attack on an SSH or SSL connection between two of your computers. Take a look at my Top 75 Tools List and ensure you understand what each does and when it would be useful. Try out as many as you can.
- Take a vacation, or at least a weekend camping! You deserve it! The steps above would probably take at least 3-12 months full-time, depending on your motivation level and the depth and breadth of your research.
Now you have learned enough to be dangerous. At this point, you would have little trouble obtaining most certifications, after studying the specifics of each topic. If your main goal is to find a job quickly, perhaps adding these extra feathers to your cap might be worthwhile. But I think your best bet is to prove your knowledge by joining and contributing to the security community. While this does indeed help others, it isn't an entirely selfless act. It improves your skills, leads to important contacts, and demonstrates your knowledge and ability in a constructive way. The latter is important if securing a career is one of your goals. These steps should also be fun! If not, perhaps you should keep looking at other fields. Here are some ideas:
Start participating with insightful comment and answers on the mailing lists. This is very easy and serves as a great learning experience, way to meet people, and garners some name recognition. If a security manager with a stack of 60 resumes recognizes your name, that is a huge win!
When a new worm or a big new vulnerability comes out, everyone wants to know the details. If you stay up all night disassembling the worm/patch and write the first comprehensive analysis, many folks will find that valuable. And you will learn a lot. Let your first priority be quality - if someone beats you to it, just compare your results with theirs to see if you (or they) missed (or misinterpreted) anything. You can also post your own exploits, although that is more of a political hot potato.
Attending security conferences is a great way to learn, party with fellow hackers, and network (in every sense of the word). Much better is to speak at these conferences. This field changes rapidly so there are always new topics and technologies to discuss. You don't have to be a well-known expert with a long history - just learn your topic well and put in the effort for a quality presentation. You could present at Defcon, at one of the more commercial events, or at a smaller regional con like ToorCon, CodeCon, Hivercon, etc. Among other advantages (often free admission/travel/hotel), this is a great way to meet people with similar interests. I spoke at the latest CanSecWest and have submitted a proposal for the next Defcon.
Now that you've seen and understand a wide variety of software vulnerabilities from your Bugtraq research, start finding your own. You can start by downloading any PHP app from Sourceforge. Most of those are hopelessly vulnerable to Cross-Site-Scripting, SQL injection, and/or remote code execution by "remote include" directives. Many (if not most) Windows shareware daemons are also vulnerable to simple buffer overflows and format-string bugs. Notify the authors and then write an advisory. After a few of these "easy targets", try breaking some more widely deployed programs.
Write a security tool! I could list some suggestions, but by this point you will have many of your own ideas as to what is needed. Scratch an itch.
I hope this helps. If you want more suggestions, Ask Slashdot. From that story, I found this post particularly insightful, especially the emphasis on "people skills". I don't claim to have any, but understand the value :).
5) Have you ever been tempted to use your gifts...
by Tim_F...in a negative manner?
Have you ever hacked into someone else's computer? Have you ever considered it? What would cause you to think of doing this? Would your tools (nmap, etc.) be enough to allow you to do this?
And if you haven't, why is that the case?
Fyodor
I never do script-kiddie style "hack any random vulnerable box on the Internet" cracking. But sometimes I will launch targeted attacks at specific companies. I'll usually start with just a web browser and various search engines to learn everything I can about my target. I need to understand what the company does, who it partners with, and whether it has any corporate siblings, subsidiaries, or parents. Beyond that, posts by individual employees can be a gold mine. Besides providing names and titles for social engineering and brute force password attacks, the IPs in the mail/news routing headers can be very valuable. One of the reasons I run my own mailing list archive is to maintain access to the raw mail folders which contain the routing info and X-no-archive posts that web archives strip out. Another advantage to locating employees is that you can send them trojan executable attachments, which can be a very effective way into the network.
Next I'll gather known IP network information on the companies via DNS, whois, regional registries like ARIN, routing info, Netcraft, etc. Then comes the scanning (I tend to use Nmap), application-probing, vulnerability discovery, and exploitation stages.
Of course, I only do this when the company is paying me to do so. Performing these pen-tests offers several advantages over blackhat activity:
- You don't go to jail (If you've worded your contract carefully.)
- Instead of having to keep your übertechniques secret to avoid prosecution, you get to demonstrate them to management.
- They actually pay you for this! And you are helping to protect them and the privacy of their customers.
Now some people might ask how you gain these skills without practicing on other networks first. Cheap hardware and the evolution of free UNIX operating systems have made this much easier than in the past. See the previous answer for some suggestions. And remember that you can always work together with friends, or participate in hacking contests like Defcon's Capture the Flag.
6) You'll have seen a lot of breakins.
by HulverDuring your time running Honeypots, you'll have seen a lot of compromised systems. Is there any incident that's really stuck in your mind because of the audacity of the attempt, or the stupidity of the person attempting the breakin.
Fyodor
On the humorous front, one attacker was was running a public webcam during his exploits, so we were able to watch him crack into our boxes in real time :). I will resist the urge to link a screenshot. His rough location was determined when we noticed Mrs. Doubtfire playing on his TV and correlated that with public schedule listings. He was working with a Pakistani group, but was actually on the US East Coast.
In the "disturbing audacity" front, this year we found that a group of crackers had broken into an ecommerce site and actually programmed an automated billing-sytem-to-IRC gateway. They could obtain or validate credit card numbers by simply querying the channel bot! Expect a more detailed writeup soon.
7) What makes a honey net enticing?
by corniceIt seems that many of the honey nets that the average hobbyist would run are built to attract a lesser cracker. What I mean is that ports are left open that normally would not be left open. Services are running that normally should not, etc. I think that a really smart fish would see this as nothing but a cheap lure and refuse the bait. Do you think it's possible to fool the really smart fish? Is is possible to bait with something enticing enough without tipping off the big fish? Does publication of your work make this task more difficult?
Fyodor
Excellent question, and I had many of the same concerns upon joining the project. Then I remembered that most of the attacks and real-world compromises are committed by these marginally skilled script kiddies. So there is still a lot of value in understanding their tools, tactics, and motives. Despite this apparent limitation, I have been surprised by some of the sophisticated things we have found. For example, the first known "in the wild" attack using the Solaris dtspcd vulnerability was caught by one of our honeynets and resulted in this CERT advisory. Then one of our Honeynet Alliance members had their Win2K honeypot compromised and joined into a botnet with 18,000 machines! Attackers on such a grand scale won't even know all of the companies they have compromised, much less whether any of the systems are honeynets.
I do believe baiting the "smart fish" might be possible, but I have never done this. Is not legally entrapment, as we aren't any sort of police force, but I am not very comfortable with the idea. If someone attacks my box that is just unobtrusively sitting on the network, I believe the attacker should have no expectation of privacy for his activities on the system. Things become more complex if I try to lure the attacker.
8) IPv6
by calumlDo you think that with the very large address space of IPv6 that random scanning for a certain port will die off? (I notice nmap doesn't support random IPv6 address scanning - maybe you've already come to the same conclusion?) Simply put, the chances of finding a machine if it's not advertised anywhere will be very much reduced. Will this make people lazy and complacent, trusting on the large numbers involved to protect them?
Fyodor
Finding a machine by by pinging a completely random 128-bit address will probably never be effective. Fortunately, we won't have to! Nmap does not even do that for 32-bit IPv4 addresses - it is smart enough to skip huge blocks of address space that are unallocated or used for private (RFC1918, localhost) addresses. We will also see patterns emerge for IPv6. For example, they may often be allocated sequentially so that finding one leads to many others. I am waiting until adoption rises and we start seeing these patterns emerge before I can implement them appropriately in Nmap. Certain new DNS features may also prove useful for locating IPv6 machines and networks.
9) standalones and small home nets
by zoggerit seems like most of the emphasis is on enterprise networks, but that still leaves millions and millions of home machines and small home networks just stuck. What do you see as some of the trends and solutions for those people? Their data and system integrity is just as important to them as any corporations is, and usually not having the appropriate skill set, is even harder to implement.
Fyodor
I am afraid the focus by security companies on enterprise networks will continue, as that is where the money is. The good news is that securing small home networks is far easier. But that doesn't make it simple, nor mean that many people will bother. I would categorize the risks into 3 categories:
Traditional network server vulnerabilities: Your average home user doesn't need to run any network daemons or have any TCP/UDP ports open to the Internet. Most of the time they only have 1 IP, used either by a standalone PC or a NAT device (e.g. "broadband router") in front of their small network. This is a good configuration, as it limits what attackers can reach directly. But you need to be sure that the IP doesn't have any unnecessary ports open. You can verify this by running 'netstat' on the Windows or UNIX machine using the IP. I would also recommend confirming using a port scanner such as Nmap. Here are example commands:
nmap -p- -sS -T4 -v -O [your IP] nmap -p- -sU -v [ your IP ]
The TCP and UDP scans could be combined into one execution, but are listed separately since the TCP scan may go much faster. Remote UDP scans are also less reliable against some heavily filtered hosts. You may have to rely on the netstat info or configuration details in this case.Any open ports found should be evaluated with extreme prejudice. Unless clearly necessary, close Windows file sharing, external NAT device admin ports, and everything else found.
Don't forget the wireless backdoor! Blocking the Internet link from your private machines is insufficient if anyone can hop on your open WLAN and attack your machines. WEP isn't perfect, but the 104-bit (so-called 128-bit) version should at least keep people from accidentally connecting to your network or sniffing your data. Be sure to set a good password and upgrade to recent firmware for your WAP and other network devices.
Subscribe to the security advisory lists for all the operating systems (and devices, if available) you run. Major vendors such as RedHat, Debian, FreeBSD, Mandrake, and Microsoft all offer these. Most even offer automatic updates if you desire that.
Client vulnerabilities: Once you close the services you don't need (ideally all of them), client vulnerabilities must be addressed. Keeping your web browser and mail reader up-to-date is particularly crucial. Also harden them as much as possible. For example, IE is full of holes but at least has a good interface for site-by-site security policies (Tools -> Internet Options -> Security). Go through and neuter the "Internet zone" settings by disabling ActiveX and Java. In the rare case that sites need this, find an alternative site or add them to the trusted zone. If your are really serious about security, neuter "trusted sites" and "local intranet" privileges as well. Many recent IE vulnerabilities trick the browser into using the wrong zones. Consider using a different browser. Also configure your mailer to disregard HTML and JavaScript.
Remember to pay careful attention to security warnings, whether they come from IE, Mozilla, your ssh client, or anything else. Don't just click OK. And don't shoot yourself in the foot when configuring your apps. It is hard to entirely blame the vendor when users tell P2P apps or Windows filesharing to share their whole drive without any password. Failing to change default passwords or enable basic restrictions on X Window or FTP servers is only slightly more forgivable. All of these errors happen frequently! The apps/devices should be secure by default, but you have the ultimate responsibility for protecting your data.
Malware: This is what I consider the biggest problem on desktops: people running applications they can't trust. Email borne viruses, worms and trojans are an obvious example. Be very careful what you click on. Unfortunately, it is very difficult to know what to trust. Mail is trivial to forge, and even the "proper" installers for many P2P applications infest your computer with loads of invasive spyware. Even Intuit TurboTax was caught writing to customers' boot information track.
What can you do? My honest suggestion is to run peer-reviewed open source applications on a free OS such as Linux or FreeBSD. You still have to be careful, but these problems are far less prevalent on UNIX platforms, which also have better tools and procedures to deal with them.
What if dumping Windows is not an option? Run NT/2K/XP instead of Win9X/ME, and try to run everything you can as an unprivileged (non-administrator) user. Be extraordinarily careful about what you install and run, and make frequent backups. You might also want to look into a personal firewall such as Zone Alarm (limited free version.
10) What is your favourite tool?
by NoryungiI have just read your top 75 security tools list. Thank you for posting all this information, which I am going to study very carefully.
One question though: in all these tools, which one is your personal favourite? (This excludes Nmap, of course).
Fyodor
I have far too many favorites among this great group to choose just one! But here are a few developers and tools that are particularly worthy of mention:
One of the people I most admire in the security field is Solar Designer. He is a guru in networking, security, and low level kernel/assembly/architecture details. He has also created many tools that security professionals use daily. Yet he never exhibits the arrogance, elitism, and egotism that sadly characterizes so many "stars" of the security community.
Among SD's tools is John the Ripper, my longtime favorite local password hash cracker. It has been around forever, but was written with a flexible and powerful interface while keeping extensibility in mind. So it is still as useful in these days of shadowed password files and MD5/Blowfish hashes as it was back in the days of crypt() and unprotected /etc/passwd. Lately SD has been working on the Owl secure GNU/Linux distribution, which can be installed on disk for hardened systems like firewalls, or booted and run from CD as an easy way to run security tools such as John and Nmap.
Another of those "brilliant yet still nice" security developers is Dug Song. Even after the seminal "Insertion, Evasion, and Denial of Service" paper by Ptacek and Newsham, many IDS vendors continued to ignore the problem. When Doug released Fragrouter (now fragroute), which implements some of these attacks, vendors finally took notice! He has also written the excellent libdnet library, but my favorite of his tools is DSniff, a suite of tools for advanced network sniffing and "monkey-in-the-middle" attacks. It even handles ARP poisoning and other techniques for sniffing hosts on a switched LAN.
While I'm on this topic, let me also give "mad props" to the Hping2 packet prober, Kismet wireless stumbler, Ethereal packet decoder, Netcat, recent THC releases, Snort IDS, the Nessus vulnerability scanner, and all the other great Open Source tools out there!
I would also like to thank Slashdot for granting me this interview and to everyone who asked such excellent questions. I only wish I had time to answer more of them. Then again, I have probably rambled on enough. Now it is your turn to ramble in the comments :).
Cheers,
Fyodor -
Cyber Insurance Between the Lines
Shackleford writes "Security Focus has an article that discusses insurance policies regarding 'computer attacks and cyber sabotage.' It discusses a case in which an administrator who set up back doors in the system with which he was trusted deleted files to which he could access after he was fired. His company had insurance against dishonest acts by employees, but not against 'acts of destruction.' Eventaully, the company won, but the case went to litigation. So the lesson to be learned here is that your company may have 'cyber insurance' without knowing it, but you need to be sure about it." -
Use a Honeypot, Go to Prison?
scubacuda writes "Using a honeypot to detect and surveil computer intruders might put you on the working end of federal wiretapping beef, or even get you sued by the next hacker that sticks his nose in the trap, according this (old) Security Focus article. Honeypots could be federal criminal law calls "interception of communications", a felony that carries up to five years in prison. Because the Federal Wiretap Act has civil provisions, as well as criminal, there's even a chance that a hacker could file a lawsuit against a honeypot operator that doesn't have their legal ducks in a row. "It would take chutzpah," said Richard Salgado, senior counsel for the Department of Justice's computer crime unit, "But there's a case where an accused kidnapper who was using a cloned cell phone sued for the interception of the cell phone conversations... And he won."" -
Slashback: GSM, Buffy, Wobble
Slashback tonight brings you updates on the future of Iraq's cellular infrastructure, the real reason Buffy is departing, Intuit and Macrovision, and more. Read on below for the details.Macrovision, everyone's favorite killjoy. byteCoder writes "Apparently Macrovision marketing is trying to put a good spin on Intuit's plan to eliminate the use of Macrovision's DRM software for pre-paid copies of TurboTax (as discussed last week here). This reminds me of the classic Monty Python line: "I'm not dead yet!""
That's got to be some spin -- An anonymous reader points to Eric Hellweg's Tech Investor on CNN, which suggests that the backlash which triggered Intuit's copy-protection reversal may have cost the company $100 million.
Can I use my Go Phone there? An anonymous reader writes ""In a follow-up to the Slashdot article 'CDMA vs GSM in Post-war Iraq,' The Reg has a story about how MCI has won the contract to rebuild the mobile phone system with GSM. This is a good thing for the people of Iraq that GSM is being used, GSM is the world standard and several U.S. companies (AT&T for one) are switching to GSM."
Adding Money to Insult. Neophytus writes "Remember the 'Star Wars Kid' that waxy.org found a couple of weeks ago? Well after over a million downloads the guy has been found. His name is Ghyslain, a 15-year-old tenth grader living in Quebec. Jish contacted him and got a brief, but interesting, interview."
No unlimited copy privileges in jail. the-dude-man writes "As reported here A 19-year-old pleaded guilty to costing DirectTV for leaking information about the secrets of DirectTV's most advanced anti-piracy technology to hacker websites. As part of the plea deal, Serebryany admitted to copying and distributing 800 megabytes of scanned documents from DirecTV, costing the company $68,000 in investigatory costs. Both sides stipulated to sentencing factors that carry six months to a year in prison under federal guidelines -- assuming no prior convictions. The sentencing court can depart from the guidelines only if the judge finds that the proposed sentence doesn't adequately reflect the facts of the case. According to court records affidavit, Serebryany's adventures began when he found himself with access to some of DirecTV's most coveted technological secrets while working for his uncle at a document imaging company at the office of a Los Angeles law firm, Jones, Day, Reavis and Pogue. The firm was representing the satellite TV company in a lawsuit against NDS, the makers of the smart cards DirecTV uses to control access to its signal."
For every 11 discontented customers, there's one of these happy oddballs! RedWingsSuck writes "A few weeks ago, I asked /. users what they thought about the wobble my 12" Power Book has developed. Last week Apple Care told me that I could send my laptop off for repairs. I decided to drive to the local Apple Store, about 15 minutes away, and drop it off. They had my laptop for less than 3 days. When I went in to pick it up, they told me that it was sent in and the BC (bottom cover) was repaired. It doesn't wobble anymore, so I am happy. I was really surprised with how fast it was fixed. I didn't mean to sound like I regretted my AiBook purchase in the last post, and now I even happier."
Relax, it's a television show. HardcoreGamer writes "Buffy creator Joss Whedon responds to questions from New York Times readers on Buffy the Vampire Slayer as it comes to the end of its 7 season run. He also discusses the now-canceled Firefly and concludes with one of the key reasons why the show is ending: 'I'm simply too tired.'"
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The War Between p2p and Record Companies Heating Up?
the-dude-man writes "Securityfocus.com Reports that there may be a new nasty turn to the battle between the p2p networks and the RIAA/MPAA. recently, the RIAA has been trying to flood kazza with files that appear to be valid copyrighted material (movies,mp3s, ect) but are empty or, in one case, of Madonna Louise Veronica Ciccone, contain a voice file asking, "What the f*ck do you think you are doing?". The p2p networks are considering a possible move agianst the RIAA in response to this by using recently enacted anti-spam laws." -
Xbox Hacking Book Prepares to Fly Off Shelves
SecurityFocus posted an article today about a new book that covers hacking the Xbox. The book's author, Andrew "Bunnie" Huang, reports that it's selling well, even though the release date has not yet arrived. Presumably, this is because the book covers soldering techniques and adding features like blue LEDs and modchips to Xboxes, most of which violate the DMCA. If this stuff is interesting to you, you can order a copy from Huang's site. It amazes me that a book such as this could be banned, yet car service manuals can be sold in most bookstores. -
Xbox Hacking Book Prepares to Fly Off Shelves
SecurityFocus posted an article today about a new book that covers hacking the Xbox. The book's author, Andrew "Bunnie" Huang, reports that it's selling well, even though the release date has not yet arrived. Presumably, this is because the book covers soldering techniques and adding features like blue LEDs and modchips to Xboxes, most of which violate the DMCA. If this stuff is interesting to you, you can order a copy from Huang's site. It amazes me that a book such as this could be banned, yet car service manuals can be sold in most bookstores. -
Security Vulnerability in Microsoft .NET Passport
Stuart Moore writes "A vulnerability was reported in Microsoft .NET Passport, also affecting Hotmail user accounts. The simple flaw allows an attacker to change any person's password to an arbitrary value. The attacker can then gain access to the victim's accounts, as well as to the victim's personal information (if any is stored w/ Passport). Muhammad Faisal Rauf Danka posted a note to the Full-Disclosure security e-mail list after multiple unsuccessful attempts to contact Microsoft." There's a news report as well. -
HTML Rendering Crashes IE
SlimySlimy writes "According to this article on Secunia, a new IE exploit was found that crashes almost any version of Internet Explorer past 4.0 with just 5 lines of plain HTML code (no JavaScript, ActiveX, etc.). If you're very brave, you can test/crash your IE by going here." There's also a note on SecurityFocus. -
Hackers in the Henhouse
strucker writes "A good story on SecurityFocus from the RSA Conference. Kevin Mitnick debated his former prosecutor, DOJ attorney Christopher Painter, on the whether ex-hackers could be trusted as computer security professionals. Mitnick says hackers bring special skills to the job, while Painter says a criminal is a criminal." -
Hackers in the Henhouse
strucker writes "A good story on SecurityFocus from the RSA Conference. Kevin Mitnick debated his former prosecutor, DOJ attorney Christopher Painter, on the whether ex-hackers could be trusted as computer security professionals. Mitnick says hackers bring special skills to the job, while Painter says a criminal is a criminal." -
"Super-DMCA" Outlaws Ph.D. Thesis
zenquest writes "SecurityFocus reports in this article that a recently-enacted Michigan law makes the graduate work of Niels Provos illegal. (His honeyd project was discussed here a few months back.) According to the article, "Among other things, residents of the Great Lakes State can no longer knowingly "assemble, develop, manufacture, possess, deliver, offer to deliver, or advertise" any device or software that conceals "the existence or place of origin or destination of any telecommunications service." It's also a crime to provide written instructions on creating such a device or program. Violators face up to four years in prison." Provos has had to move his website and research papers to a server in the Netherlands. Similar bills are under consideration in seven states, and have become law in six others. The EFF has more information about the individual states. So, does this mean that Caller-ID block now illegal, as well?"