Domain: us-cert.gov
Stories and comments across the archive that link to us-cert.gov.
Stories · 48
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750,000 Medtronic Defibrillators Vulnerable To Hacking (startribune.com)
The Homeland Security Department has issued an alert Thursday describing two types of computer-hacking vulnerabilities in 16 different models of Medtronic implantable defibrillators sold around the world, including some still on the market today. The vulnerability also affects bedside monitors that read data from the devices in patients' homes and in-office programming computers used by doctors. From the report: Medtronic recommends that patients only use bedside monitors obtained from a doctor or from Medtronic directly, and to keep it plugged in so it can receive software updates, and that they maintain "good physical control" over the monitor. Implantable defibrillators are complex, battery-run computers implanted in patients' upper chests to monitor the heart and send electric pulses or high-voltage shocks to prevent sudden cardiac death and treat abnormal heart beats. The vulnerabilities announced Thursday do not affect Medtronic pacemakers.
The more serious of the two is a vulnerability that could allow improper access to data sent between a defibrillator and an external device like an at-home monitor. The system doesn't use formal authentication or authorization protections, which means an attacker with short-range access to the device could inject or modify data and change device settings, the advisory says. A second vulnerability allows an attacker to read sensitive data streaming out of the device, which could include the patient's name and past health data stored on their device. The system does not use data encryption, the advisory says. (Deploying encryption in medical devices is tricky because is increases computational complexity and therefore uses the battery faster.) The FDA isn't expected to issue a recall as the vulnerabilities are expected to be patched via a future software update. -
Your GPS Devices May Stop Working On April 6 If You Don't Or Can't Update Firmware (theregister.co.uk)
Zorro shares a report from The Register: Older satnavs and such devices won't be able to use America's Global Positioning System properly after April 6 unless they've been suitably updated or designed to handle a looming epoch rollover. GPS signals from satellites include a timestamp, needed in part to calculate one's location, that stores the week number using ten binary bits. That means the week number can have 210 or 1,024 integer values, counting from zero to 1,023 in this case. Every 1,024 weeks, or roughly every 20 years, the counter rolls over from 1,023 to zero. The first Saturday in April will mark the end of the 1,024th week, after which the counter will spill over from 1,023 to zero. The last time the week number overflowed like this was in 1999, nearly two decades on from the first epoch in January 1980. You can see where this is going. If devices in use today are not designed or patched to handle this latest rollover, they will revert to an earlier year after that 1,024th week in April, causing attempts to calculate position to potentially fail. System and navigation data could even be corrupted, we're warned. U.S. Homeland Security explained the issue in a write-up this week. GPS.gov also notes that the new CNAV and MNAV message formats will use a 13-bit week number, so this issue shouldn't happen again anytime soon. The site recommend users consult the manufacturer of their equipment to make sure they have the proper updates in place. -
DHS Issues Security Alert About Recent DNS Hijacking Attacks (zdnet.com)
The U.S. Department of Homeland Security has published today an "emergency directive" that contains guidance in regards to a recent report detailing a wave of DNS hijacking incidents perpetrated out of Iran. ZDNet reports: The emergency directive [1, 2] orders government agencies to audit DNS records for unauthorized edits, change passwords, and enable multi-factor authentication for all accounts through which DNS records can be managed. The DHS documents also urges government IT personnel to monitor Certificate Transparency (CT) logs for newly-issued TLS certificates that have been issued for government domains, but which have not been requested by government workers.
The emergency directive comes after last week, the DHS issued an alert about ongoing DNS hijacking attacks through its US-CERT division. The DHS US-CERT alert was based on a report published last week by U.S. cyber-security firm FireEye. The now infamous report detailed a coordinated hacking campaign during which a cyber-espionage group believed to operate out of Iran had manipulated DNS records for the domains of private companies and government agencies. The purpose of these DNS hijacks was to redirect web traffic meant for companies and agencies' internal email servers towards malicious clones, where the Iranian hackers would record login credentials. -
FBI Tells Router Users To Reboot Now To Kill Malware Infecting 500,000 Devices (arstechnica.com)
The FBI is advising users of consumer-grade routers and network-attached storage devices to reboot them as soon as possible to counter Russian-engineered malware that has infected hundreds of thousands devices. Ars Technica reports: Researchers from Cisco's Talos security team first disclosed the existence of the malware on Wednesday. The detailed report said the malware infected more than 500,000 devices made by Linksys, Mikrotik, Netgear, QNAP, and TP-Link. Known as VPNFilter, the malware allowed attackers to collect communications, launch attacks on others, and permanently destroy the devices with a single command. The report said the malware was developed by hackers working for an advanced nation, possibly Russia, and advised users of affected router models to perform a factory reset, or at a minimum to reboot. Later in the day, The Daily Beast reported that VPNFilter was indeed developed by a Russian hacking group, one known by a variety of names, including Sofacy, Fancy Bear, APT 28, and Pawn Storm. The Daily Beast also said the FBI had seized an Internet domain VPNFilter used as a backup means to deliver later stages of the malware to devices that were already infected with the initial stage 1. The seizure meant that the primary and secondary means to deliver stages 2 and 3 had been dismantled, leaving only a third fallback, which relied on attackers sending special packets to each infected device.
The redundant mechanisms for delivering the later stages address a fundamental shortcoming in VPNFilter -- stages 2 and 3 can't survive a reboot, meaning they are wiped clean as soon as a device is restarted. Instead, only stage 1 remains. Presumably, once an infected device reboots, stage 1 will cause it to reach out to the recently seized ToKnowAll.com address. The FBI's advice to reboot small office and home office routers and NAS devices capitalizes on this limitation. In a statement published Friday, FBI officials suggested that users of all consumer-grade routers, not just those known to be vulnerable to VPNFilter, protect themselves. The Justice Department and U.S. Department of Homeland Security have also issued statements advising users to reboot their routers as soon as possible. -
Google and Microsoft Disclose New CPU Flaw, and the Fix Can Slow Machines Down (theverge.com)
An anonymous reader quotes a report from The Verge: Microsoft and Google are jointly disclosing a new CPU security vulnerability that's similar to the Meltdown and Spectre flaws that were revealed earlier this year. Labelled Speculative Store Bypass (variant 4), the latest vulnerability is a similar exploit to Spectre and exploits speculative execution that modern CPUs use. Browsers like Safari, Edge, and Chrome were all patched for Meltdown earlier this year, and Intel says "these mitigations are also applicable to variant 4 and available for consumers to use today." However, unlike Meltdown (and more similar to Spectre) this new vulnerability will also include firmware updates for CPUs that could affect performance. Intel has already delivered microcode updates for Speculative Store Bypass in beta form to OEMs, and the company expects them to be more broadly available in the coming weeks. The firmware updates will set the Speculative Store Bypass protection to off-by-default, ensuring that most people won't see negative performance impacts.
"If enabled, we've observed a performance impact of approximately 2-8 percent based on overall scores for benchmarks like SYSmark 2014 SE and SPEC integer rate on client 1 and server 2 test systems," explains Leslie Culbertson, Intel's security chief. As a result, end users (and particularly system administrators) will have to pick between security or optimal performance. The choice, like previous variants of Spectre, will come down to individual systems and servers, and the fact that this new variant appears to be less of a risk than the CPU flaws that were discovered earlier this year. -
US Says Russia Hacked Energy Grid, Punishes 19 for Meddling (apnews.com)
Associated Press: Pushing back harder on Russia, the Trump administration accused Moscow on Thursday of a concerted hacking operation targeting the U.S. energy grid, aviation systems and other infrastructure, and also imposed sanctions on Russians for alleged interference in the 2016 election. It was the strongest action to date against Russia by the administration, which has long been accused of being too soft on the Kremlin, and the first punishments for election meddling since President Donald Trump took office. The sanctions list included the 13 Russians indicted last month by special counsel Robert Mueller, whose Russia investigation the president has repeatedly sought to discredit. U.S. national security officials said the FBI, Department of Homeland Security and intelligence agencies had determined that Russian intelligence and others were behind a broad range of cyberattacks beginning a year ago that have infiltrated the energy, nuclear, commercial, water, aviation and manufacturing sectors. Further reading: Russian Government Cyber Activity Targeting Energy and Other Critical Infrastructure Sectors (US-Cert); U.S. blames Russia for cyber attacks on energy grid, other sectors (Reuters); U.S. says Russian hackers targeted American energy grid (Politico); Trump administration finally announces Russia sanctions over election meddling (CNN); U.S. sanctions on Russia cite 2016 election interference -- but remain largely symbolic (USA Today); U.S. Sanctions Russians Charged by Mueller for Election Meddling (Bloomberg); and Trump Administration Sanctions Russians for Election Meddling and Cyberattacks (The New York Times). -
Mozilla Patches Critical Bug in Thunderbird (threatpost.com)
Mozilla has issued a critical security update to its popular open-source Thunderbird email client. From a report The patch was part of a December release of five fixes that included two bugs rated high and one rated moderate and another low. Mozilla said Thunderbird, which is also serves as a news, RSS and chat client, the latest Thunderbird 52.5.2 version released last week fixes the vulnerabilities. The most serious of the fixes is a critical buffer overflow bug (CVE-2017-7845) impacting Thunderbird running on Windows operating system. The bug is present when "drawing and validating elements with angle library using Direct 3D 9," according to the Mozilla Foundation Security Advisory. US-Cert said it encourages users and administrators to review the patch and apply the necessary update. -
The Only Safe Email is Text-Only Email (theconversation.com)
Sergey Bratus, Research Associate Professor of Computer Science, Dartmouth College, and Anna Shubina, Post-doctoral Associate in Computer Science, Dartmouth College write: The real issue is that today's web-based email systems are electronic minefields filled with demands and enticements to click and engage in an increasingly responsive and interactive online experience. It's not just Gmail, Yahoo mail and similar services: Desktop-computer-based email programs like Outlook display messages in the same unsafe way. Simply put, safe email is plain-text email -- showing only the plain words of the message exactly as they arrived, without embedded links or images. Webmail is convenient for advertisers (and lets you write good-looking emails with images and nice fonts), but carries with it unnecessary -- and serious -- danger, because a webpage (or an email) can easily show one thing but do another. Returning email to its origins in plain text may seem radical, but it provides radically better security. Even the federal government's top cybersecurity experts have come to the startling, but important, conclusion that any person, organization or government serious about web security should return to plain-text email (PDF). -
Wormable Code-Execution Bug Lurked In Samba For 7 Years (arstechnica.com)
Long-time Slashdot reader williamyf was the first to share news of "a wormable bug [that] has remained undetected for seven years in Samba verions 3.5.0 onwards." Ars Technica reports: Researchers with security firm Rapid7...said they detected 110,000 devices exposed on the internet that appeared to run vulnerable versions of Samba. 92,500 of them appeared to run unsupported versions of Samba for which no patch was available... Those who are unable to patch immediately can work around the vulnerability by adding the line nt pipe support = no to their Samba configuration file and restart the network's SMB daemon. The change will prevent clients from fully accessing some network computers and may disable some expected functions for connected Windows machines.
The U.S. Department of Homeland Security's CERT group issued an anouncement urging sys-admins to update their systems, though SC Magazine cites a security researcher arguing this attack surface is much smaller than that of the Wannacry ransomware, partly because Samba is just "not as common as Windows architectures." But the original submission also points out that while the patch came in fast, "the 'Many eyes' took seven years to 'make the bug shallow'." -
Some HTTPS Inspection Tools Actually Weaken Security (itworld.com)
America's Department of Homeland Security issued a new warning this week. An anonymous reader quotes IT World: Companies that use security products to inspect HTTPS traffic might inadvertently make their users' encrypted connections less secure and expose them to man-in-the-middle attacks, the U.S. Computer Emergency Readiness Team warns. US-CERT, a division of the Department of Homeland Security, published an advisory after a recent survey showed that HTTPS inspection products don't mirror the security attributes of the original connections between clients and servers. "All systems behind a hypertext transfer protocol secure (HTTPS) interception product are potentially affected," US-CERT said in its alert.
Slashdot reader msm1267 quotes Threatpost: HTTPS inspection boxes sit between clients and servers, decrypting and inspecting encrypted traffic before re-encrypting it and forwarding it to the destination server... The client cannot verify how the inspection tool is validating certificates, or whether there is an attacker positioned between the proxy and the target server. -
DHS Warns of Mirai Botnet Threat To Cellular Modems (securityledger.com)
chicksdaddy writes from a report via The Security Ledger: The Mirai malware that is behind massive denial of service attacks involving hundreds of thousands of "Internet of Things" devices may also affect cellular modems that connect those devices to the internet, the Department of Homeland Security (DHS) is warning. An alert issued by DHS's Industrial Control System CERT on Wednesday warned that cellular gateways manufactured by Sierra Wireless are vulnerable to compromise by the Mirai malware. While the routers are not actively being targeted by the malware, "unchanged default factory credentials, which are publicly available, could allow the devices to be compromised," ICS-CERT warned. The alert comes after a number of reports identified devices infected with the Mirai malware as the source of massive denial of service attacks against media websites like Krebs on Security and the French hosting company OVH. The attacks emanated from a global network of hundreds of thousands of infected IP-enabled closed circuit video cameras, digital video recorders (DVRs), network video recorders (NVRs) and other devices. Analysis by the firm Imperva found that Mirai is purpose-built to infect Internet of Things devices and enlist them in distributed denial of service (DDoS) attacks. The malware searches broadly for insecure or weakly secured IoT devices that can be remotely accessed and broken into with easily guessed (factory default) usernames and passwords. The report adds: "Sierra said in an alert that the company has 'confirmed reports of the 'Mirai' malware infecting AirLink gateways that are using the default ACEmanager password and are reachable from the public internet.' Sierra Wireless LS300, GX400, GX/ES440, GX/ES450, and RV50 were identified in the bulletin as vulnerable to compromise by Mirai. Furthermore, devices attached to he gateway's local area network may also be vulnerable to infection by the Mirai malware, ICS-CERT warned. Sierra Wireless asked affected users to reboot their gateway. Mirai is memory resident malware, meaning that is erased upon reboot. Furthermore, administrators were advised to change the password to the management interface by logging in locally, or remotely to a vulnerable device." -
How a Bad UI Decision From Microsoft Helped Macro Malware Make a Comeback (softpedia.com)
An anonymous reader writes: Macro malware is a term to describe malware that relies on automatically executed macro scripts inside Office documents. This type of malware was very popular in the '90s, but when Microsoft launched Office 97, it added a popup before opening Office files that warned users about the dangers of enabling macros. Microsoft's decision had a huge impact on macro malware, and by the 2000s, this type of malware went almost extinct. Lo and behold, some smart Microsoft UI designers start thinking that users might get popup fatigue, so in Office 2007, Microsoft makes the monumental mistake of removing the very informative popup, and transforming the warning into a notification bar at the top of the document with only six words warning users about macros. Things get worse in Office 2010, when Microsoft even adds a shiny button that reads "Enable Content," ruining everything it had done in the past 10-15 years, and allowing macro malware to become the dangerous threat it is today. The U.S.-CERT team issued an official threat yesterday warning organizations about the resurging threat of malware that uses macro scripts in Office documents. -
Attackers Targeting Critical SAP Flaw Since 2013 (threatpost.com)
msm1267 quotes a report from Threatpost: Three dozen global enterprises have been breached by attackers who exploited a single, mitigated vulnerability in SAP business applications. The attacks were carried out between 2013 and are ongoing against large organizations owned by corporations in the United States, United Kingdom, Germany, China, India, Japan, and South Korea, spanning 15 critical industries, researchers at Onapsis said today. [The DHS-sponsored CERT at the Software Engineering Institute at Carnegie Mellon University also published an alert this morning, the first in its history for SAP applications.] The severity of these attacks is high and should put other organizations on notice that are running critical business processes and data through SAP Java apps. The issue lies in the Invoker Servlet, which is part of the standard J2EE specification and enables developers to test custom Java applications. When it is enabled, developers and users can call these servlets over the Internet directly without authentication or authorization controls. Attackers, however, can take advantage of this same functionality to exploit these business critical systems. -
Months After Hacks, DHS Sends a Warning About Hospital Ransomware (vice.com)
An anonymous reader writes: Since February, at least a dozen hospitals have been affected by ransomware, malware that encrypts a victim's files until they cough up a bounty to the hackers. In response, US-CERT, the country's Computer Emergency Readiness Team, issued an alert on March 31 warning potential victims of the risks, and how to protect themselves. But, considering that some hospitals have already had to divert emergency services, push high-risk operations to future dates, and even turn away some patients, is the alert too little, too late? -
XSS Can Take Down Your IoT Wind Turbine (softpedia.com)
An anonymous reader writes: ISC-CERT is warning of a critical vulnerability (score 9.8 out of 10) in Internet-enabled XZERES 442SR wind turbines. According to CERT, the Web administration portal of these portals is subject to the simplest XSS attacks (modifying IDs for admin access), which even the most basic n00b-level hackers can perform. This is yet another security bug in critical IoT equipment, like the Midas gas detector. -
DHS: Drug Infusion Pumps Vulnerable To Trivial Hacks
chicksdaddy writes with news of a DHS warning about the vulnerability of a popular brand of drug pumps. "The Department of Homeland Security warned that drug infusion pump management software sold by Hospira contains serious and exploitable vulnerabilities that could be used to remotely take control of the devices.
The MedNet server software manages drug libraries, firmware updates, and configurations of Hospira intravenous pumps. DHS's Industrial Control System Computer Emergency Response Team (ICS-CERT) said in an advisory issued Tuesday that the MedNet software from the firm Hospira contains four critical vulnerabilities – three of them capable of being exploited remotely. The vulnerabilities could allow a malicious actor to run malicious code on and take control of the MedNet servers, which could be used to distribute unauthorized modifications to medication libraries and pump configurations.
The vulnerabilities were discovered by independent security researcher Billy Rios and reported to both Hospira and ICS-CERT. The vulnerabilities vary in their severity. Among the most serious is Rios's discovery of a plaintext, hard-coded password for the SQL database used by the MedNet software (CVE-2014-5405e). By obtaining that password, an attacker could compromise the MedNet SQL server and gain administrative access to the workstation used to manage deployed pumps." -
Homeland Security Urges Lenovo Customers To Remove Superfish
HughPickens.com (3830033) writes "Reuters reports that the US Department of Homeland Security has advised Lenovo customers to remove "Superfish" software from their computers. According to an alert released through its National Cyber Awareness System the software makes users vulnerable to SSL spoofing and could allow a remote attacker to read encrypted web browser traffic, spoof websites and perform other attacks on Lenovo PCs with the software installed. Lenovo inititally said it stopped shipping the software because of complaints about features, not a security vulnerability. "We have thoroughly investigated this technology and do not find any evidence to substantiate security concerns," the company said in a statement to Reuters early on Thursday. On Friday, Lenovo spokesman Brion Tingler said the company's initial findings were flawed and that it was now advising customers to remove the software and providing instructions for uninstalling "Superfish". "We should have known about this sooner," Tingler said in an email. "And if we could go back, we never would have installed this software on our machines. But we can't, so we are dealing with this head on."" -
Homeland Security Urges Lenovo Customers To Remove Superfish
HughPickens.com (3830033) writes "Reuters reports that the US Department of Homeland Security has advised Lenovo customers to remove "Superfish" software from their computers. According to an alert released through its National Cyber Awareness System the software makes users vulnerable to SSL spoofing and could allow a remote attacker to read encrypted web browser traffic, spoof websites and perform other attacks on Lenovo PCs with the software installed. Lenovo inititally said it stopped shipping the software because of complaints about features, not a security vulnerability. "We have thoroughly investigated this technology and do not find any evidence to substantiate security concerns," the company said in a statement to Reuters early on Thursday. On Friday, Lenovo spokesman Brion Tingler said the company's initial findings were flawed and that it was now advising customers to remove the software and providing instructions for uninstalling "Superfish". "We should have known about this sooner," Tingler said in an email. "And if we could go back, we never would have installed this software on our machines. But we can't, so we are dealing with this head on."" -
Hackers Used Nasty "SMB Worm" Attack Toolkit Against Sony
wiredmikey writes Just hours after the FBI and President Obama called out North Korea as being responsible for the destructive cyber attack against Sony Pictures, US-CERT issued an alert describing the primary malware used by the attackers, along with indicators of compromise. While not mentioning Sony by name in its advisory, instead referring to the victim as a "major entertainment company," US-CERT said that the attackers used a Server Message Block (SMB) Worm Tool to conduct the attacks. According to the advisory, the SMB Worm Tool is equipped with five components, including a Listening Implant, Lightweight Backdoor, Proxy Tool, Destructive Hard Drive Tool, and Destructive Target Cleaning Tool. US-CERT also provided a list of the Indicators of Compromise (IOCs), which include C2 IP addresses, Snort signatures for the various components, host based Indicators, potential YARA signatures to detect malware binaries on host machines, and recommended security practices and tactical mitigations. -
US Gov't Issues Alert About iOS "Masque Attack" Threat
alphadogg writes Three days after security company FireEye warned of an iPhone/iPad threat dubbed "Masque Attack", the U.S. government has issued a warning of its own about this new risk by malicious third-party apps to Apple iOS devices. US-CERT warned: "This attack works by luring users to install an app from a source other than the iOS App Store or their organizations' provisioning system. In order for the attack to succeed, a user must install an untrusted app, such as one delivered through a phishing link." Revelations of Masque came on the heels of a related exploit (that also threatens Macs) called WireLurker. -
Report: Watch Dogs Game May Have Influenced Highway Sign Hacking
An anonymous reader writes 'Earlier this month, at least three U.S. states reported that a hacker had broken into electronic road signs above major highways, with the hacker leaving messages for people to follow him on Twitter. The Multi-State Information Sharing an Analysis Center (MS-ISAC) produced an intelligence report blaming a Saudi Arabian hacker that the organization says likely got the idea from Watch Dogs, a new video in which game play revolves around "hacking," with a focus on hacking critical infrastructure-based electronic devices in particular. "Watch Dogs allows players to hack electronic road signs, closed-circuit television cameras (CCTVs), street lights, cell phones and other systems. On May 27, 2014, the malicious actor posted an image of the game on his Twitter feed, demonstrating his interest in the game, and the compromise of road signs occurs during game play. CIS believes it is likely that a small percentage of Watch Dogs players will experiment with compromising computers and electronic systems outside of game play, and that this activity will likely affect SSLT [state, local, tribal and territorial] government systems and Department of Transportation (DOT) systems in particular." The signs allowed telnet and were secured with weak or default passwords. The report came out on the same day that The Homeland Security Department cautioned transportation operators about a security hole in some electronic freeway billboards that could let hackers display bogus warnings to drivers.' -
Ask Slashdot: How To Communicate Security Alerts?
Capt.Michaels writes: "I need to start sending security alerts and warnings to employees at my somewhat sizable company. My problem: I'm not sure how to send these alerts without freaking everyone out and causing the help desk to get flooded with phone calls. For example, let's take the current Internet Explorer exploit that caused US-CERT to recommend switching browsers. I don't want everyone killing our limited help desk with ridiculous questions like, 'I downloaded $New_Browser, how can I get my toolbar? How do I bookmark things in this browser? Can you tell me which browser you recommend?' Simply put: some vulnerabilities are worth major changes, but many aren't. If we switched software every time a new vulnerability came out, we'd never get anything done. Sooner or later, a patch will come out, and everything will be back to normal. But how do I communicate to end users that they should be aware of an issue and take extra care until it's fixed, without causing panic?" -
US and UK Governments Advise Avoiding Internet Explorer Until Bug Fixed
martiniturbide (1203660) writes "Reuters is reporting that 'The U.S. and UK governments on Monday advised computer users to consider using alternatives to Microsoft Corp's Internet Explorer browser until the company fixes a security flaw that hackers used to launch attacks.' The article states that 'The Department of Homeland Security's U.S. Computer Emergency Readiness Team said in an advisory released on Monday that the vulnerability in versions 6 to 11 of Internet Explorer could lead to "the complete compromise" of an affected system.'" -
Exposed SSH Key Means US Emergency Alert System Can Be Hacked
wiredmikey writes "Recently discovered security flaws in the Emergency Alerting System (EAS) which is widely used by TV and radio stations across the United States, has made the systems vulnerable to remote attack. The vulnerability stems from an SSH key that is hard-coded into DASDEC-I and DASDEC-II devices made by Monroe Electronics. Unless the default settings were altered during deployment, impacted systems are using a known key that could enable an attacker with full access if the systems are publicly faced or if they've already compromised the network. By exploiting the vulnerability, an attacker could disrupt a station's ability to transmit and/or could send out false emergency information. 'Earlier this year we were shown an example of an intrusion on the EAS when the Montana Television Network's regular programming was interrupted by news of a zombie apocalypse. Although there was no zombie apocalypse, it did highlight just how vulnerable the system is,' said Mike Davis, a principal research scientist at IOActive. The DHS issued an alert on the vulnerability, and IOActive, the firm that discovered the flaw, has published additional technical details (PDF) on the security issue." -
Malware Infects US Power Facilities Through USB Drives
angry tapir writes "Two U.S. power companies have reported infections of malware during the past three months, with the bad software apparently brought in through tainted USB drives, according to the U.S. Department of Homeland Security's Industrial Control Systems Cyber Emergency Response Team (ICS-CERT). The publication (PDF) did not name the malware discovered. The tainted USB drive came in contact with a 'handful of machines' at the power generation facility and investigators found sophisticated malware on two engineering workstations critical to the operation of the control environment, ICS-CERT said." -
Apple and Mozilla Block Vulnerable Java Plug-ins
hypnosec writes "Following news that a Java 0-day has been rolled into exploit kits, without any patch to fix the vulnerability, Mozilla and Apple have blocked the latest versions of Java on Firefox and Mac OS X respectively. Mozilla has taken steps to protect its user base from the yet-unpatched vulnerability. Mozilla has added to its Firefox add-on block-list: Java 7 Update 10, Java 7 Update 9, Java 6 Update 38 and Java 6 Update 37. Similar steps have also been taken by Apple; it has updated its anti-malware system to only allow version 1.7.10.19 or higher, thereby automatically blocking the vulnerable version, 1.7.10.18." Here are some ways to disable Java, if you're not sure how. -
Thousands of SCADA Devices Discovered On the Open Internet
Trailrunner7 writes with news of the continuing poor state of security for industrial control systems. From the article: "Never underestimate what you can do with a healthy list of advanced operator search terms and a beer budget. That's mostly what comprises the arsenal of two critical infrastructure protection specialists who have spent close to nine months trying to paint a picture of the number of Internet-facing devices linked to critical infrastructure in the United States. It's not a pretty picture. The duo ... have with some help from the Department of Homeland Security (PDF) pared down an initial list of 500,000 devices to 7,200, many of which contain online login interfaces with little more than a default password standing between an attacker and potential havoc. DHS has done outreach to the affected asset owners, yet these tides turn slowly and progress has been slow in remedying many of those weaknesses. ...The pair found not only devices used for critical infrastructure such as energy, water and other utilities, but also SCADA devices for HVAC systems, building automation control systems, large mining trucks, traffic control systems, red-light cameras and even crematoriums." -
ICS-CERT Warns That Infrastructure Switches Have Hard-Coded Account Holes
Trailrunner7 writes with news of more critical infrastructure not being well secured. From the article: "The Department of Homeland Security is warning users of some of GarrettCom's switches that there is a hard-coded password in a default account on the devices, which are deployed in a number of critical infrastructure industries, that could allow an attacker to take control of them. A researcher at Cylance discovered the hidden account and warned the ICS-CERT...The problem exists in the GarrettCom Magnum MNS-6K Management Software and the company has released an updated version of the application that addresses the vulnerability. GarrettCom's switches are used in a variety of industries, including transportation, utilities and defense. The company issued a new version of the affected software in May, but didn't note that the fix for this vulnerability was included in it. 'A "factory" account intended to only be allowed to log in over a local serial console port exists in certain versions of GarrettCom's MNS-6K and MNS-6K-SECURE software. Cylance has identified an unforseen method whereby a user authenticated as "guest" or "operator" can escalate privileges to the "factory" account,' Cylance said in its advisory." -
Private Key Found Embedded In Major SCADA Equipment
sl4shd0rk writes "RuggedOS (A Siemens Subsidiary of Flame and Stuxnet fame), an operating system used in mission-critical hardware such as routers and SCADA gear, has been found to contain an embedded private encryption key (PDF). Now that all affected RuggedCom devices are sharing the same key, a compromise on one device gets you the rest for free. If the claims are valid, systems in use which would be affected include U.S. Navy, petroleum giant Chevron, and the Wisconsin Department of Transportation. The SCADA gear which RuggedOS typically runs on is often connected to machinery controlling electrical substations, traffic control systems, and other critical infrastructure. This is the second security nightmare for RuggedCom this year, the first being the discovery of a backdoor containing a non-modifiable account." -
DHS Asked Gas Pipeline Firms To Let Attackers Lurk Inside Networks
wiredmikey writes "According to reports, which were confirmed Friday by ICS-CERT (PDF), there has been an active cyber attack campaign targeting the natural gas industry. However, it's the advice from the DHS that should raise some red flags. 'There are several intriguing and unusual aspects of the attacks and the U.S. response to them not described in Friday's public notice,' Mark Clayton wrote. 'One is the greater level of detail in these alerts than in past alerts. Another is the unusual if not unprecedented request to leave the cyber spies alone for a little while.' According to the source, the companies were 'specifically requested in a March 29 alert not to take action to remove the cyber spies if discovered on their networks, but to instead allow them to persist as long as company operations did not appear to be endangered.' While the main motive behind the request is likely to gain information on the attackers, letting them stay close to critical systems is dangerous. The problem lies in the complexities of our critical infrastructures and the many highly specialized embedded systems that comprise them." -
Aussie Blogger Hit With DDoS Death Threats
mask.of.sanity writes "An Australian blogger who blew the lid on emerging domain-name fraud campaigns has received death threats from the scammers. His blog and domain parking company are still being hit with a large distributed denial of service attack that has the death threats embedded as HTML links within its logs. Australia's government CERT team and the U.S. Secret Service (blog servers were hosted on U.S. soil) are pursuing the botnet's command and control servers. Ten days later, the victim is still being attacked and is fighting a cat-and-mouse game as IP address ranges change." -
DOS, Backdoor, and Easter Egg Found In Siemens S7
chicksdaddy writes with a post in Threat Post. From the article: "Dillon Beresford used a presentation at the Black Hat Briefings on Wednesday to detail more software vulnerabilities affecting industrial controllers from Siemens, including a serious remotely exploitable denial of service vulnerability, more hard-coded administrative passwords, and even an easter egg program buried in the code that runs industrial machinery around the globe. In an interview Tuesday evening, Beresford said he has reported 18 separate issues to Siemens and to officials at ICS CERT, the Computer Emergency Response Team for the Industrial Control Sector. Siemens said it is readying a patch for some of the holes, including one that would allow a remote attacker to gain administrative control over machinery controlled by certain models of its Step 7 industrial control software." -
US Warns of Problems In Chinese SCADA Software
alphadogg writes "Two vulnerabilities found in industrial control system software made in China but used worldwide could be remotely exploited by attackers, according to a warning issued on Thursday (PDF) by the US Industrial Control Systems Cyber Emergency Response Team. The vulnerabilities were found in two products from Sunway ForceControl Technology, a Beijing-based company that develops SCADA software for a wide variety of industries, including defense, petrochemical, energy, water and manufacturing. Sunway's products are mostly used in China but also in Europe, the Americas, Asia and Africa, according to the agency's advisory. SCADA software has come under increasing attention from security researchers, as the software has often not undergone rigorous security audits despite its use to manage critical infrastructure or manufacturing processes. SCADA systems are increasingly connected to the Internet, which has opened up the possibility of hackers remotely breaking into the systems. Last year, researchers discovered a highly sophisticated worm called Stuxnet that was later found to target Siemens' WinCC industrial control software." -
US-CERT Warns of Serious Hole In ActiveX Control From Iconics
Trailrunner7 writes "The US's Computer Emergency Response Team (CERT) issued a warning (PDF) to critical infrastructure firms on Wednesday about a serious security hole in products from Massachusetts firm Iconics that could leave critical systems vulnerable to remote attacks. US companies in the electricity, oil and gas, manufacturing and water treatment sectors have been warned about a flaw in an ActiveX control used in two products by Iconics. The software, Genesis32 and BizViz, are Human-Machine Interface (HMI) products that provide a graphical user interface to various types of industrial control systems. The software can control industrial systems used for a variety of purposes including manufacturing, building automation, oil and gas, water and waste water treatment, among other applications." -
Chinese Hackers Strike Energy Companies
angry tapir writes "Chinese hackers working regular business hours shifts stole sensitive intellectual property from energy companies for as long as four years using relatively unsophisticated intrusion methods in an operation dubbed 'Night Dragon,' according to a new report from security vendor McAfee." Reader IT.luddite links this informative PDF from CERT. -
Microsoft Downplays IIS Bug Threat
snydeq writes "Microsoft confirmed that its IIS Web-server software contains a vulnerability that could let attackers steal data, but downplayed the threat, saying 'only a specific IIS configuration is at risk from this vulnerability.' The flaw, which involves how Microsoft's software processes Unicode tokens, has been found to give attackers a way to view protected files on IIS Web servers without authorization. The vulnerability, exposed by Nikolaos Rangos, could be used to upload files as well. Affecting IIS 6 users who have enabled WebDAV for sharing documents via the Web, the flaw is currently being exploited in online attacks, according to CERT, and is reminiscent of the well-known IIS unicode path traversal issue of 2001, one of the worst Windows vulnerabilities of the past decade." -
Drive-By Download Poisons Google Search Results
snydeq writes "A new attack that peppers Google search results with malicious links is spreading quickly, CERT has warned. The attack, which can be found on several thousand legitimate Web sites, exploits flaws in Adobe software to install malware that steals FTP login credentials and hijacks the victim's browser, replacing Google search results with links chosen by the attackers. Known as Gumblar because at one point it used the Gumblar.cn domain, the attack is spreading quickly in part because its creators have been good at obfuscating their attack code and because they are using FTP login credentials to change folder permissions, leaving multiple ways they can get back into the server." -
US-CERT Says Microsoft's Advice On Downadup Worm Bogus
CWmike writes "Microsoft's advice on disabling Windows' 'Autorun' feature is flawed, the US Computer Emergency Readiness Team (US-CERT) said today, and it leaves users who rely on its guidelines to protect their PCs against the fast-spreading Downadup worm open to attack. US-CERT said in an alert that Microsoft's instructions on turning off Autorun are 'not fully effective' and 'could be considered a vulnerability.' The flaw in Microsoft's guidelines are important at the moment, because the 'Downadup' worm, which has compromised more computers than any other attack in years, can spread through USB devices, such as flash drives and cameras, by taking advantage of Windows' Autorun and Autoplay features." -
Will the Next Election Be Hacked?
plasmacutter writes to let us know about the new article by Robert F. Kennedy Jr. in Rolling Stone, following up on his "Was the 2004 Election Stolen?" (slashdotted here). Kennedy recounts the sorry history of electronic voting so far in this country — and some of the incidents will be new even to this clued-in crowd. (Had you heard about the CERT advisory on an undocumented backdoor account in a Diebold vote-tabulating database — crediting Black Box Voting?) Kennedy's reporting is bolstered by the accounts of a Diebold insider who has gone on record with his concerns. From the article: 'Chris Hood remembers the day in August 2002 that he began to question what was really going on in Georgia... "It was an unauthorized patch, and they were trying to keep it secret from the state," Hood told me. "We were told not to talk to county personnel about it. I received instructions directly from [president of Diebold election unit Bob] Urosevich...' According to Hood, Diebold employees altered software in some 5,000 machines in DeKalb and Fulton counties, the state's largest Democratic strongholds. The tally in Georgia that November surprised even the most seasoned political observers. (Hint: Republicans won.) -
Linux/Unix Tops Charts for Vulnerabilities in 2005
BeanBunny writes "I realize that this topic is almost as volatile around here as Intelligent Design, but I think this is interesting nonetheless. US-CERT has released their year-end vulnerability summary. According to InformationWeek.com, Linux/Unix (including Mac OS) had almost three times the number of OS-specific vulnerabilities reported last year compared to Microsoft Windows. Obviously, statistics are meaningless without the proper conjecture, speculation, and opinionation, so let the debate begin again over which OS is really more secure." -
Common Malware Enumeration Initiative
LogError writes "The Common Malware Enumeration Initiative was just announced. Headed by the United States Computer Emergency Readiness Team (US-CERT) and supported by an editorial board of anti-virus vendors and related organizations it should provide a neutral, shared identification method for malware outbreaks." -
Name That Worm
Ant wrote to mention a C|NET article reporting on the Common Malware Enumeration (CME) initiative, now emerging from its test phase. From the article: "Next month, the U.S. Computer Emergency Readiness Team (CERT) plans to officially take the wraps off the effort, meant to reduce the confusion caused by the different names security companies give worms, viruses and other pests. The project assigns a unique identifier to a particular piece of malicious software. When included in security software, in alerts and in virus encyclopedia entries, this identifier should help people determine which pest is hitting their systems and whether they are protected ..." -
Diebold Insider Comments on Voting System Flaw
Call Me Black Cloud writes "A Diebold insider is blowing the whistle on the company's continued lack of concern about security holes in its voting software. The insider wrote to Brad Friedman, a somewhat shrill political blogger, claiming the company is instructing technicians to keep quiet about the security flaws. This is despite the vulnerability being listed on the US-CERT website for the last year. A Diebold company rep admits the software can be remotely accessed via modem, but states, "it's up to a jurisdiction whether they wish to use it or not...I don't know of any jurisdiction that does that." The insider disputes that, claiming several counties in Maryland made use of the feature in 2004." This in addition to the fact that Blackboxvoting already hacked the system using a chimp last year. -
U.S. Cybersecurity Report Available
Kaelem writes "Kevin Rose put up a copy of the report Cybersecurity for the Homeland (pdf), due to be released tomorrow. It talks about some interesting things, like expanding the US-CERT website as well as funding for colleges to develop cybersecurity curriculum." -
CERT Warns Of Multiple Vulnerabilities In Libpng
jefftp writes "CERT announced today that there are several vulnerabilities in libpng, one is a buffer overflow which could potentially cause a PNG image file to execute arbitrary code. Libpng release 1.2.6rc1 addresses the problems covered by this CERT announcement, and can be obtained from the libpng Sourceforge project. A fully tested version is to be released in the next few weeks." -
New Windows Vulnerability in Help System
wesleyt writes "CERT announced today a significant Microsoft Windows vulnerability related to IE and its handling of the Windows help subsystem. There are currently no patches available and no virus definitions for the major scanners. As well, exploits have been reported in the wild. Because the vulnerability is in the help subsystem, even users who avoid Outlook and IE are vulnerable, since IE is the default handler for help files. It seems that this is going to be an ugly one." -
New Windows Vulnerability in Help System
wesleyt writes "CERT announced today a significant Microsoft Windows vulnerability related to IE and its handling of the Windows help subsystem. There are currently no patches available and no virus definitions for the major scanners. As well, exploits have been reported in the wild. Because the vulnerability is in the help subsystem, even users who avoid Outlook and IE are vulnerable, since IE is the default handler for help files. It seems that this is going to be an ugly one." -
Multiple Vulnerabilities in OpenSSL
gfilion writes "Updated versions of OpenSSL are now available which correct two security issues: A null-pointer assignment during SSL handshake and an out-of-bounds read that affects Kerberos ciphersuites. Full advisory available on OpenSSL site and US-CERT."