December 2005 - Posts

Days after the revelation of a flaw in Windows' handling of WMF graphics files, dozens of exploits are being spread from thousands of adware sites. But good protection is available.

At the same time, further testing confirms that a workaround issued by third parties and endorsed by Microsoft Corp. is effective in most regards, and in the most important circumstances, but not in all. Also, the workaround has side effects that could prove troublesome.

AV-Test, which tests anti-malware products, has been tracking the situation closely and has, so far, analyzed 73 variants of malicious WMF files. Products from the following companies have identified all 73:

  • Alwil Software (Avast)
  • Softwin (BitDefender)
  • ClamAV
  • F-Secure Inc.
  • Fortinet Inc.
  • McAfee Inc.
  • ESET (Nod32)
  • Panda Software
  • Sophos Plc
  • Symantec Corp.
  • Trend Micro Inc.
  • VirusBuster
These products detected fewer variants:
  • 62 — eTrust-VET
  • 62 — QuickHeal
  • 61 — AntiVir
  • 61 — Dr Web
  • 61 — Kaspersky
  • 60 — AVG
  • 19 — Command
  • 19 — F-Prot
  • 11 — Ewido
  •  7 — eSafe
  •  7 — eTrust-INO
  •  6 — Ikarus
  •  6 — VBA32
  •  0 — Norman
eWeek Story
Issued: December 30, 2005

Security Advisories Updated or Released Today

* Security Advisory (912840)

  - Title:    Vulnerability in Graphics Rendering Engine Could
              Allow Remote Code Execution.

  - Web site: http://go.microsoft.com/fwlink/?LinkId=58452

  - Reason For Update: Advisory updated. FAQ section updated.

Support:
Technical support resources can be found at:
http://go.microsoft.com/fwlink/?LinkId=21131
Cyber Security Bulletin 2005 Summary
2005 Year-End Index

Information in the US-CERT Cyber Security Bulletin is a compilation and includes information published by outside sources, so the information should not be considered the result of US-CERT analysis. Software vulnerabilities are categorized in the appropriate section reflecting the operating system on which the vulnerability was reported; however, this does not mean that the vulnerability only affects the operating system reported since this information is obtained from open-source information.

This bulletin provides a year-end summary of software vulnerabilities that were identified between January 2005 and December 2005. The information is presented only as a index with links to the US-CERT Cyber Security Bulletin the information was published in. There were 5198 reported vulnerabilities: 812 Windows operating system vulnerabilities; 2328 Unix/Linux operating vulnerabilities; and 2058 Multiple operating system vulnerabilities.

US-CERT
Posted Friday, December 30, 2005 2:37 PM by Don | with no comments
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Techshout.com reports that a new, deceptive Trojan Horse program has surfaced. The program is engineered to produce fake Google ads that are formatted to look like legitimate ones. The ads are incorporated in Google AdSense, the program that lets website owners display ads from Google’s list of advertisers. The Trojan Horse apparently downloads itself onto an unsuspecting computer through a web page and then replaces the original ads with its own set of malicious ads.
Sony BMG has struck a deal with the plaintiffs in a class action lawsuit over copy-restriction software it used in music CDs, according to a settlement document filed at a New York court Wednesday.

The record label has agreed to compensate buyers of CDs that contained the XCP and MediaMax DRM programs and to provide software utilities to allow consumers to uninstall both types of software from their computer.

CNet

Posted Friday, December 30, 2005 6:05 AM by Don | with no comments
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Security Advisories Updated or Released Today

* Security Advisory (912840)

  - Title:    Vulnerability in Graphics Rendering Engine Could
              Allow Remote Code Execution.

  - Web site: http://go.microsoft.com/fwlink/?LinkId=58452

Support:

Technical support resources can be found at:
http://go.microsoft.com/fwlink/?LinkId=21131
Bugtraq ID: 16074
Class: Unknown
CVE: CVE-MAP-NOMATCH
Remote: Yes
Local: Yes
Published: Dec 28 2005 12:00AM
Updated: Dec 28 2005 12:57AM

Microsoft Windows WMF graphics rendering engine is affected by a remote code execution vulnerability.
The problem presents itself when a user views a malicious WMF formatted file, triggering the vulnerability when the engine attempts to parse the file.
The issue may be exploited remotely or by a local attacker. Any code execution that occurs will be with SYSTEM privileges due to the nature of the affected engine.
Microsoft Windows XP is considered to be vulnerable at the moment. It is likely that other Windows operating systems are affected as well.

Vulnerable Systems:

Microsoft Windows XP Tablet PC Edition SP2
Microsoft Windows XP Tablet PC Edition SP1
Microsoft Windows XP Tablet PC Edition
Microsoft Windows XP Professional SP2
Microsoft Windows XP Professional SP1
Microsoft Windows XP Professional
Microsoft Windows XP Media Center Edition SP2
Microsoft Windows XP Media Center Edition SP1
Microsoft Windows XP Media Center Edition
Microsoft Windows XP Home SP2
Microsoft Windows XP Home SP1
Microsoft Windows XP Home

Securityfocus
Secunia
FrSIRT
Helsinki-based F-Secure told users to ignore instant messages with the subject head "MSN Messenger 8 Working BETA" that go on to claim that "Messenger 8 BETA has been leaked!"

The message, which refers to an alternate name for the upcoming Live Messenger, also sports a link. Users who click on the link, then download and run the executable, are in reality installing the Virkel.f Trojan.

TechWeb News

The National Security Agency (NSA) has collected large volumes of phone and Internet traffic that has crossed into or out of the United States in an eavesdropping program much more extensive than acknowledged by the Bush Administration, according to a New York Times article published on Friday.

In what has been described as a large data-mining operation, NSA analysts have allegedly gathered large amount of routing information from network data and e-mail messages in search of patterns that may aid terrorism investigations, the New York Times reported.

Securityfocus

Posted Tuesday, December 27, 2005 6:18 AM by Don | with no comments
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Companies are not embracing encryption as a way to protect sensitive data. According to Ponemon Institute's 2005 National Encryption Survey, only 4.2% of companies responding to our survey say their organizations have an enterprisewide encryption plan.
However, the study also reveals that encryption is viewed by many as an important security tool that enhances the IT professionals' overall sense of trust or comfort in data-protection efforts. The primary reasons cited for not encrypting sensitive or confidential information were concern about system performance (69%), complexity (44%) and cost (25%). (See "Securing Card Data Isn't An Easy Sell.")

ComputerWorld
Posted Monday, December 26, 2005 11:10 AM by Don | with no comments
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Q&A: Amy Roberts of Microsoft’s Security Technology Unit discusses the “Protect Your PC in 2006” resolution and other Microsoft consumer-security efforts.

Four Steps to a More Secure PC

PC Microsoft is promoting the following four-step routine for everyone who owns a PC and goes online to “Protect Your PC in 2006”:

  • Use an Internet firewall. Firewalls help protect PC owners against attackers who might try to delete information from their computer, make their computer crash or even steal personal information. For a firewall to be effective it needs to be set up properly, such as the one included in Windows XP Service Pack 2.
  • Run regular updates. To help protect against new threats, PC owners need to stay on top of security updates. One of the easiest ways to do this is to use Windows’ Automatic Update, which installs security updates so the PC owner doesn’t have to worry about them.
  • Install and keep up to date an anti-virus program. Anti-virus programs help protect PCs from harmful programs that attach themselves to other programs or files to spread from computer to computer. But anti-virus programs need to be kept to up to date to help protect against new threats as they emerge.
  • Use anti-spyware software. Spyware, as the name implies, can be used to spy on other PCs by collecting the owner’s personal information or changing the configuration of a computer without the owner’s consent. Spyware can significantly slow down the performance of a computer, make unwanted changes to important settings and be difficult to remove.

Posted Sunday, December 25, 2005 3:52 PM by Don | with no comments
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Visa USA acknowledged Saturday that a U.S. merchant "may have experienced a data security breach" that compromised credit card account information.

The statement came in response to a News.com inquiry related to customers whose Visa debit cards had been put on fraud watch or deactivated due to a security breach. The customers include a San Francisco Bay Area man whose Wells Fargo-issued card was deactivated this week and a couple in Ohio whose card was placed on a watch.

CNet

Posted Sunday, December 25, 2005 5:51 AM by Don | with no comments
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Adobe Systems Inc. wants you to know when your PDF documents are being tracked.

The company's Acrobat and Reader software products have been updated to give users a pop-up warning when a document that is tagged for tracking attempts to make a connection to a Web service.

Adobe Director of Security Solutions John Landwehr confirmed that the feature has been added to version 7.05 of the two products in order to offer "security and privacy" to PDF users.

eWeek

Anti-virus vendor Symantec Corp. has publicly acknowledged that a high-risk buffer overflow vulnerability in its AntiVirus Library could lead to code execution attacks when RAR archive files are scanned.

One day after private security researcher Alex Wheeler flagged the issue as a serious risk, Symantec issued an advisory of its own, confirming the vulnerability exists in 64 enterprise and consumer-facing products.

"Symantec is currently working to create and distribute product updates for all affected products," the company said in a note to customers.

eWeek
Related Story: http://msmvps.com/blogs/donpatterson/archive/2005/12/20/79539.aspx
Posted Friday, December 23, 2005 7:54 AM by Don | with no comments
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Virtual infrastructure software maker VMWare Inc. has rushed out fixes for a "very serious" security flaw that put users of its product line at risk of code execution attacks.
The vulnerability, which affects both Windows and Linux systems, affects VMware Workstation 5.5, VMware GSX Server 3.2, VMware ACE 1.0.1 and the free VMware Player 1.0. All previous versions of these products are also affected.
The company rates the vulnerability as "very serious" and recommends that affected users apply the updates provided or change the configuration of the virtual machine so it does not use NAT networking.

eWEEK

Google has fixed a security flaw that had opened the door to phishing scams, account hijacks and other attacks, security researchers said Wednesday.

The flaw, known as a cross-site scripting vulnerability, existed because Google did not properly secure its mechanism for two error pages, according to Web security company Watchfire, which discovered the problem. Watchfire posted to a security mailing list an advisory on the issue.

Attackers could exploit the flaw to launch phishing scams or steal a user's credentials, said Ory Segal, director of security research at Watchfire. Phishing scams are designed to trick people into giving up sensitive information such as usernames, passwords, credit card details and Social Security numbers.

CNet

Don't open media files from sources you don't trust--it may lead to your computer being hacked, a security researcher has warned.

Tom Ferris, an independent security researcher, has provided more details on a security flaw in Apple Computer's popular iTunes and QuickTime software that could put systems running Windows and Mac OS X at risk of attack. He first disclosed the flaw in early December.

"The vulnerability allows an attacker to cause the program to crash and could allow the execution of arbitrary code," Ferris said. "The flaw exists in all current and earlier versions of iTunes and QuickTime."

CNet

Spyware spreaders have stepped up attempts to trick users into downloading malware using a combination of browser vulnerabilities and deceptive spam emails. In particular, bogus warnings about infestation are frequently being used to dupe Windows users into accepting potentially malign code, reports security vendor Websense. In many cases, these scam emails also request money in return for "fixing" supposed security problems that don't actually exist.

The Register
CNET News reports A Santa Claus worm is attempting to trick America Online, Microsoft MSN and Yahoo instant-messaging users into clicking on a file that delivers unwanted software to a victim's computer.

The IM.GiftCom.All worm attempts to dupe IM users into thinking an acquaintance has sent them a link to a harmless Santa Claus file, according to a security advisory issued Tuesday by IMlogic.

People who click on the file will see an image of Santa, but what they are less likely to notice is a so-called rootkit being installed onto their system. A rootkit is a tool designed to go undetected by the security software used to lock down control of a computer after an initial hack. The malicious attacker can then distribute messages to the user's IM contacts, using a similar technique to lure the unsuspecting acquaintance to click on the link.

Description:
Alex Wheeler has reported a vulnerability in Symantec AntiVirus, which potentially can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error in Dec2Rar.dll when copying data based on the length field in the sub-block headers of a RAR archive. This can be exploited to cause a heap-based buffer overflow and may allow arbitrary code execution when a malicious RAR archive is scanned.

The vulnerability has been reported in Dec2Rar.dll version 3.2.14.3 and potentially affects all Symantec products that use the DLL.

Solution:
Filter RAR archives at email or proxy gateways.

Secunia
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