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The Web's 20 Worst Security Flaws

XsynackX writes "The SANS Institute released its Top-20 list of the biggest vulnerabilities on the web today. The SANS Top 20 Internet Security Vulnerabilities list is actually a compilation of two lists--the top 10 Windows vulnerabilities and the top 10 Unix vulnerabilities. The list goes into almost more detail than any one person could ever take in on individual security flaws, but provides a wealth of knowledge for those who like to get in-depth. Interestingly enough, the browser section of the Windows vulnerabilities lists everyone's favorite browser Internet Explorer with 15 flaws and Mozilla with only 7."

49 of 214 comments (clear)

  1. not just "the web" by UnderAttack · · Score: 4, Informative

    These flaws cover more then just "the web".
    They include things like week passwords and non-web network threats.

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    1. Re:not just "the web" by StyxRiver · · Score: 2, Funny

      I can see plume of smoke from the servers at the Sans Institute! Succumb to the /. effect!

    2. Re:not just "the web" by pjt33 · · Score: 4, Funny

      But surely changing your passwords every week is good? (Well, against external attackers - not so good against internal attackers if you have to write your password on a PostIt and stick it to your monitor).

    3. Re:not just "the web" by tomsuchy · · Score: 5, Funny

      NEVER stick your password post-it on the monitor! It goes under the keyboard.

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    4. Re:not just "the web" by flossie · · Score: 4, Funny
      NEVER stick your password post-it on the monitor! It goes under the keyboard.

      That's precisely why you should stick it to the monitor - nobody will find it because they will be busy looking under the keyboard! Cunning, eh?

    5. Re:not just "the web" by ArbitraryConstant · · Score: 2, Interesting

      Changing your password every week is dumb, or at best of little benefit.

      Better pick a good password and hang onto it for a while so you can remember it.

      --
      I rarely criticize things I don't care about.
    6. Re:not just "the web" by DarkSarin · · Score: 4, Insightful

      Remember this: if the attackers have physical access to the machine, there is almost no security to speak of. You may be able to limit access to one machine at a time (thus preventing intranet assualts), but once an attacker is sitting at the computer in question, there is very little that they cannot do. This is true for both windows and linux. Even password theft is possible on Linux, given the right amount of time.

      Certainly some attacks take longer, but in general, if they have your machine, its too late for security!

      --
      "We don't know what we are doing, but we are doing it very carefully,..." Wherry, R.J. Personnel Psychology (1995)
    7. Re:not just "the web" by zerocool^ · · Score: 2, Interesting


      I know a guy who used to be a computer tech...

      Whenever a windows 98 machine would come in for a wipe-and-reload, it was fairly standard policy that, if the end user didn't have the key with them, but it was obvious that they had a copy of windows on the machine, my friend would use another windows98 key - they all work anyway, and there's no activation.

      So, after doing the install 40,000 times, he had the key memorized, and used it as his password.

      There's nothing like seeing someone type 25 random characters as a password.

      ~Will

      --
      sig?
  2. Firefox vulnerabilities IE vulnerabilities by thre5her · · Score: 4, Interesting

    Fortunately for now, security through obscurity prevails for Firefox, since most exploits will likely target IE users. However, Firefox's development model is inherently better than IE's with regards to security, since the status of these vulnerabilities is known to all and they are fixed much more quickly. Why Microsoft is still in the browser game with their lame, few-and-far-between updates is beyond me.

  3. I can't see the site by Anonymous Coward · · Score: 2, Funny

    Is slashdotting a vulnerability?

  4. Only 7? by cperciva · · Score: 4, Interesting

    ...Internet Explorer with 15 flaws and Mozilla with only 7

    Err... at this point, does it really matter? It's useful to compare BIND against djbdns (many security flaws vs. none), or Linux against OpenBSD (many security flaws vs. one remote hole in 8 years), but 15 flaws vs. 7 flaws? To me, that just says that both browsers are horribly insecure, and slightly more effort has been put into finding flaws in MSIE.

    1. Re:Only 7? by Anonymous Coward · · Score: 3, Informative

      Openbsd'd claim is for holes in a default install. Virtually no services are running in a default install.

      Add open ssh, your ftp daemon of choice, apache etc and the amount holes look about the same as Linux. Both OSs do, after all, run mostly the same software.

      Comparing MSIE vs Mozilla is useful, as both do the same job and are exposed to the internet in the same way.

    2. Re:Only 7? by endofoctober · · Score: 4, Informative

      The numbers may not matter, but the response to the threats from both organizations matters very much. Of the 7 flaws in Mozilla, all have been fixed as of Moz1.7/FF.9 whereas of IE's 15 vulnerabilities, only 6 have vendor patches.

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      - Jack
    3. Re:Only 7? by ArbitraryConstant · · Score: 4, Informative

      OpenSSH is on by default in OpenBSD. The one hole in 8 years was in OpenSSH. OpenSSH is the only service visible to the outside that's on be default.

      The forked Apache in OpenBSD is much more secure than any you'd find elsewhere. On top of all the patches rejected by the Apache people for various reasons and thus not distributed to anyone else, it benefits from W^X protection (on i386, which no one else has) and ProPolice (it's not that widely used, some of the userspace stuff in Linux seems to use it but the kernel doesn't). This has turned a bunch of arbitrary code exploits into DOSs, which merely crash the server process.

      The ftpd in the base install as well as everything else benefits from W^X and ProPolice. W^X is handled by the system, and ProPolice is used by default on anything you compile. Therefore, unless you work pretty hard to avoid it, anything that's run on OpenBSD benefits from the added protection. As a result, it's more secure because exploits aren't always exploitable on the platform.

      DOS issues are still patched, but the difference is that they're not exploitable before the patch is issued.

      --
      I rarely criticize things I don't care about.
    4. Re:Only 7? by jesser · · Score: 2, Informative

      I wouldn't take SANS's list of browser security holes too seriously. It lists the most publicized holes in Mozilla rather than the most serious holes. (To get a list of the most serious holes, look the "critical severity, high risk" holes (marked in red) on mozilla.org's list.) SANS's list includes Mozilla XPInstall Dialog Box Security Issue, which was fixed a few months ago, but fails to mention that a fully-updated version of IE in SP2 is still vulnerable. Under the list, SANS claims that Firefox does not have automatic updates, which is false.

      --
      The shareholder is always right.
  5. Their web server... by ttldkns · · Score: 4, Funny

    ...seems to feel that posting a link to it on slashdot is a vunerability.

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    How many computers are too many?
  6. Hrm. statistics speak for themselves. by rebeka+thomas · · Score: 3, Funny

    Windows with 95% has 10 of the top 20 vulnerabilities
    Unix with 5% also has 10 of the top 20 vulnerabilities.

    I think the stats speak for themselves in which is more secure. If Win boxes can take such a phenomenal market share and still only have the same number of 'top' vulnerabilities, that's putting it 19 times more secure.

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    RST
    1. Re:Hrm. statistics speak for themselves. by otlg · · Score: 2, Informative

      I think your interpretation is not quite correct. This was simple a pair of top 10 lists jammed together. It has nothing to do with instance or severity outside of their respective platforms.

  7. Ok I'm sure I'll get slammed for this but... by otlg · · Score: 4, Insightful

    Doesn't everyone that reads /. know that MS IE is a gaping security vulnerability by now. Do we *really* need to keep harping on it like a bunch of smug self-righteous motherfuckers?

    1. Re:Ok I'm sure I'll get slammed for this but... by Anonymous Coward · · Score: 5, Funny

      Do we *really* need to keep harping on it like a bunch of smug self-righteous motherfuckers?

      Yes, because it makes our penises feel bigger.

    2. Re:Ok I'm sure I'll get slammed for this but... by otlg · · Score: 2

      You've totally missed the point I was trying to make. There is nothing wrong with chastising manufacturers over security flaws. I have *no* problem with that. However, the tone of the article was 'IE has 15, mozilla only has 7, microsoft sucks, open source rules'. The reality of the situation is as follows: Microsoft has security holes, and we all know it. Mozilla/Firefox/etc. with their open source, open book approach has bugs as well. I guess what I'm saying is, I'm disappointed by the attitude that states, since it's open source we're happy with fewer security holes. One of the pro-open source arguements I hear all the time, is more secure, quicker bug fixes, etc. Given that, why isn't the Mozilla count at 1 or 2??? We should spend out time fixing what we have control over, rather than trash talking MS. That's how open source will win in the end. Trash talking won't do a damn thing.

    3. Re:Ok I'm sure I'll get slammed for this but... by LGagnon · · Score: 2, Insightful

      IE is still the most "popular" browser, so yes, we do have to. Until other browsers have greater or equal market share, there's a need to inform all those who still use IE (and yes, this includes some people on Slashdot).

  8. In my oppion by Ziak · · Score: 4, Insightful

    I've always said that spyware was caused due to Internet Explorer being so popular.... If firefox keeps the rate of growth its doing I don't think it will be that long into we see spy/malware targeting Firefox as well....

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    1. Re:In my oppion by ttldkns · · Score: 4, Informative

      Crack sites and (my friend told me this) some pron sites used to have XPI install spyware (but you had to click ok to install it).

      This was fixed by the mozilla dev team's implementation of a XPI installer website whitelist consisting of (by default) just mozdev.org. The user can add other sites though, should they want to.

      --
      How many computers are too many?
    2. Re:In my oppion by Space_Soldier · · Score: 5, Interesting

      That is not entirely true. It is well known that Microsoft abandoned IE after it has won the first browser war. Microsoft have also had a unsecure programming mindset because they started as one-user-minded company instead of multi-user-minded company. Because they did not care about security at first, now they are paying the price. Unfortunetly, the consumer is facing the heat worse than Microsoft.

      Firefox does not allow extensions to be installed from another web site besides update.mozilla.org by default. The user must specify in the options that it wants to allow extensions from a certain site to be installed, which should keep spyware low for now. Firefox users also have more computer skills than IE users. Firefox holes are filled faster than IE. All this should keep spyware low on the Mozilla platform.

      PS: I believe that a recently passed bill made spyware illegal with the penality of prison, and I think that I saw on Google news something about the first spyware trial.

  9. 7 is not `only' by mukund · · Score: 4, Insightful

    Interestingly enough, the browser section of the Windows vulnerabilities lists everyone's favorite browser Internet Explorer with 15 flaws and Mozilla with only 7.

    Don't think I'm trolling but this is like saying the USA has 27,000 nuclear weapons whereas Russia has only 13,000.

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    Banu
    1. Re:7 is not `only' by ricotest · · Score: 4, Insightful

      Also, 'flaw' is stupidly vague. There's a big difference between 'sometimes the Slashdot page isn't rendered correctly' and 'a JPEG image allows remote code execution'. From a quick look at the article, however, it covers 'vulnerabilities' which is more specific: data loss, remote code execution and crashes.

      Still, I agree with the parent - this is an AvP situation. Whoever 'wins' with the least problems, we still lose.

    2. Re:7 is not `only' by fireboy1919 · · Score: 4, Insightful

      RTFA. It's more like saying that USA has 27,000 nuclear weapons and Russia has 13,000, but they've all been disarmed.

      Not only do the Mozilla vulnerabilities not actually allow much of an attack, but they've all been fixed in the latest versions of the browser.

      This is not true on the Windows side, as Secunia recommends disabling or switching browsers to deal with a lot of the bugs.

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    3. Re:7 is not `only' by mdfst13 · · Score: 2, Insightful

      Not just that, but there is also overlap. I.e. most of the Mozilla vulnerabilities also apply against IE. If the basic issue were solved (for example, the JPEG flaw in MS Windows), then Mozilla wouldn't have to add code to catch OS and protocol level flaws.

      The shell: vulnerability is a perfect example of this. Mozilla didn't fix anything. They simply decided that the shell: protocol was so incredibly insecure that they would disable it entirely. IE is still vulnerable, as the protocol still sucks. Now though, people using IE have to click the run from remote location button rather than "Save As" in order to get cracked.

  10. Re:Firefox vulnerabilities IE vulnerabilities by superpulpsicle · · Score: 2, Insightful

    Because Microsoft wants to be in EVERY game, win or lose. They started out as an OS company, then later became an Word processing, database, browser making, video game company. M$ management is the classic "I want that Feature, because I said so" type.

  11. That should be... by Anonymous Coward · · Score: 5, Insightful

    Top Vulnerabilities to UNIX Systems
    1. A fool with root access.

  12. Erm no. by colonslashslash · · Score: 2, Insightful
    Windows with 95% has 10 of the top 20 vulnerabilities Unix with 5% also has 10 of the top 20 vulnerabilities.

    I think the stats speak for themselves in which is more secure. If Win boxes can take such a phenomenal market share and still only have the same number of 'top' vulnerabilities, that's putting it 19 times more secure. From the summary:

    "The SANS Top 20 Internet Security Vulnerabilities list is actually a compilation of two lists--the top 10 Windows vulnerabilities and the top 10 Unix vulnerabilities."

    The two lists are not competeting with each other, it is simply the top 10 win vulns, and the top 10 unix vulns, its not a top 20 list where there happen to be 10 vulnerabilities of each OS.

    --
    She's built like a steak house, but she handles like a bistro....
    1. Re:Erm no. by Valar · · Score: 2, Funny

      annnndddd whhhhooossshhh.... there goes the joke.

  13. What about threats to Mac OS X? by toupsie · · Score: 2, Interesting

    What are the major threats against Mac OS X? Granted a lot of the underpinnings of Mac OS X are BSD userland cousins, but the default install locks down the OS quite a bit. Is my Safari going to let me "owned" like IE? Should I be paying attention to the threats on Linux userland apps? Or is it all "Don't Worry, Be Happy" for Mac users?

    --
    Strange women lying in ponds distributing swords is no basis for a system of government.
    1. Re:What about threats to Mac OS X? by Anonymous Coward · · Score: 2, Funny
      Given a normal install, it would take a combined Safari exploit + root exploit to 'own' your box. You should only worry about the Linux apps you're running on your machine, ie fink. A compromise of one of those would still need a root exploit, though.

      Generally, with automatic update turned on, and the ocasional glance at the Apple section on /., you should be fine.

  14. You were going for the Funny mod, right? by wasted · · Score: 4, Insightful

    If not ...
    The article separately lists the top 10 Windows and top 10 Unix vulnerabilities. In this case, Top 10 plus Top 10 does not necessarily equal Top 20.

    Sort of like if you considered the Top 10 fastest race cars at a Nascar race and the Top 10 fastest race cars at a soapbox derby race - the resulting list wouldn't be the Top 20 fastest race cars.

  15. Re:Firefox vulnerabilities IE vulnerabilities by Inthewire · · Score: 2, Insightful

    I thought they started out as a language company.
    Shows what I know.

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    Writers imply. Readers infer.
  16. P2P??? by Reason58 · · Score: 3, Interesting

    They list peer to peer as a Windows vulnerability?! That makes about as much sense as saying me taking a sledgehammer to your computer is a Unix vulnerability.

    1. Re:P2P??? by jesser · · Score: 2, Informative

      It makes as much sense as listing "Web browsers" as a Windows vulnerability. If you read the sections on Web browsers and P2P apps, you'll see that they're talking about specific vulnerabilities in Web browsers and P2P apps, not Web browsers and P2P apps themselves.

      --
      The shareholder is always right.
  17. Only? by powerlinekid · · Score: 4, Interesting

    ...everyone's favorite browser Internet Explorer with 15 flaws and Mozilla with only 7.

    I don't think security flaws in something as commonly used as a web browser should ever be noted as "only" a certain number. Sure Mozilla beat IE, but the point still remains that it had 7 too many. I'll have to read this list when I get a chance and see how many of those were really windows issues and mozilla just passed the data on.

    (And yes I know you'll never have bug free software)

    --

    can't sleep slashdot will eat me
  18. The Entire 56 page report. by Anonymous Coward · · Score: 3, Informative

    The entire 56 page report is available in pdf. Lets be sure to slashdot both their servers:
    http://files.sans.org/top20.pdf (351KB)

  19. Re:Firefox vulnerabilities IE vulnerabilities by jejones · · Score: 3, Insightful

    Several reasons:

    1. They wove IE into the OS for political reasons, and it's probably impractical to extract it.

    2. XUL is threatening what Netscape once threatened, namely getting rid of the applications barrier to entry that preserves the OS monopoly.

    3. MS can't be perceived as ever having lost. The image of the invincible monolith must be preserved.

  20. Re:Firefox vulnerabilities IE vulnerabilities by Anonymous Coward · · Score: 2, Insightful

    However, Firefox's development model is inherently better than IE's with regards to security, since the status of these vulnerabilities is known to all and they are fixed much more quickly

    Unfortunately, not all Firefox vulnerabilities are known to all, and nor are they fixed "quickly".

    In cases where the bug is made public, this is true. For cases where they sweep the bug in the rug and keep it from showing publicly in the bug database while they argue amongst themselves if they're really going to fix it, vulnerabilities have been left in the code for years.

  21. Re:Firefox vulnerabilities IE vulnerabilities by HellYeahAutomaton · · Score: 2, Insightful


    This thread is veering way off topic, and I realize this, but there are a couple of important issues here that need to be addressed. (Please don't mod me down. :)

    1) Firefox is about as secure and obscure as any of the less. There are a multitude of different browsers out there now, and undeniably companies like Espial and Opera have lost a lot of ground to the popularity of Firefox. Hackers have the implicit goal of doing something because they can. Exploiting holes in a piece of software starts as a "I will see if I can do this" and may eventually turn into a "Let's see who I can #$%^ over" plan. It varies. If Firefox had the most number of seats it could still be a target.

    2) MS is a business, and businesses try to make wads of cash anywhere they can. Every MS success technical success also has a large number of accompanying failures. Businesses have focus changes; some are successful and some are not. The free market (voting with dollars) decides who will be around.

    Cases in point:
    a) Sun started losing ground in the server market, so they started looking to Java as their next savior.


    b) SGI started losing ground the in the graphics workstation market and got behind OpenGL as a standard.

    c) Be, Inc changed focus from their operating system to Information Appliances and it wound them up filing for bankruptcy.


    d) Apple gave up on the Pippin and the Newton, but
    they started doing iPods because they wanted to have a me-too with the Rios and Creative Nomads.


    e) Sony for walked right in and created its own games console when Nintendo and Sega were making cash hand over fist. It paid off for them.


    f) Many companies created Doom knockoffs in the 90s and everyone and their brother now are trying to make silly bowling games for cell phones. Businesses are copycats. If they see success in an area, it is much easier to imitate (and litigate) than to innovate.


    The point behind all of these stories is that you have to diversify and change directions in order to stay afloat in business; With or without any implied innovation. MS, as well as any big business has a lot of potential to stagnate, and diversifying markets is not a bad idea. MS is just one target of stagnation out of many.

  22. Windows + Linux by Nom+du+Keyboard · · Score: 2, Funny

    So when I run a Windows emulator under Linux, do I get all 20 of them?

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  23. NetBIOS protection -- close port 445 by Gary+Destruction · · Score: 2, Interesting

    Go into the registry to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\NetBT\Parameters You'll see a string value called "TransportBindName". The default value for that string is "\Devices\". Delete \Devices\ and reboot. Port 445 will close.

  24. A matter of attitude? by tiger99 · · Score: 3, Insightful
    If someone finds a security hole in Mozilla, it gets fixed as quickly as possible, and a patch issued. Some of these such as the shell: exploit were in fact Windoze problems which the Moz developers kindly patched around. That one was a tiny download.

    But the Criminal Monopoly simply don't care either about other people's security, or about their browser, which was only intended to kill Netscape. As that has been more or less accomplished, they are simply not interested any more. What is more, in common with other Monopoly products, the underlying codebase has probably become such a mess that it would be better to throw it away and start again, but the paranoid megalomaniac Bill would have too many tantrums if someone was brave enough to tell him the truth.

  25. Interesting quote from the article by RodeoBoy · · Score: 2, Interesting

    To date no security exposures have been identified in IIS 6.0

  26. Funny by Pan+T.+Hose · · Score: 2, Informative

    They include things like week passwords and non-web network threats.

    But surely changing your passwords every week is good? (Well, against external attackers - not so good against internal attackers if you have to write your password on a PostIt and stick it to your monitor).

    Great pun, but seriously, this reminds me of one story. There was a web-based service to conveniently change personal pages of people working in the lab (photo, bio, links to projects) where everyone were usually logged-in permanently with never-expiring cookies (much like Slashdot). One day some students defeced the info page of one professor changing his photo to goatse.cx picture. I have done the investigation (eventually leading to expelling said students and further prosecution for sexual molesting--it was a public network with unfiltered access from the library used by minors) and what I have found out was that they broke into the account by sniffing a password from HTTP traffic while the victim was changing it for security reasons! I checked it and she was the only person who kept changing her password. The password was a random string of 32 alphanumeric characters, changed every morning. Other people had passwords like "pass," "clit" or "arse" (I kid you not!) but those accounts were not broken into since those passwords were not changed periodically via HTTP, effectively remaining secret. The only person paying attention to security was the least secure one. Interesting, is it not? Since that very incident I always keep saying that security layers are like the layers of onion indeed, but it is a rotten onion.

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