VRT Advisories

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VRT Rules 2008-05-29

Sourcefire VRT Rules Update

Date: 2008-05-29

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting Adobe Flash Player.

Details:

Adobe Flash Player Overflow (CVE-2007-0071):
Adobe Flash Player contains a programming error that may allow a remote attacker to execute code on an affected machine. The error occurs when the player attempts to process a flash file with a negative Scene Count value.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with SIDs 13820 through 13822.

Rule Pack Summary:

For a complete list of new and modified rules, click here.

Warning:

Sourcefire VRT rule packs often utilize enhancements made to Snort. Operators should upgrade to the latest revision or patch level for Snort to ensure these enhancements are available before using these rules.

About the VRT:

The Sourcefire VRT is a group of leading edge intrusion detection and prevention experts working to proactively discover, assess and respond to the latest trends in hacking activity, intrusion attempts and vulnerabilities. This team is also supported by the vast resources of the open source Snort community, making it the largest group dedicated to advances in the network security industry.

Posted by on May 29, 2008



VRT Rules 2008-05-27

Sourcefire VRT Rules Update

Date: 2008-05-27

Synopsis:

The Sourcefire VRT has added multiple rules in the spyware-put and backdoor categories to provide coverage for emerging spyware and backdoor threats.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the spyware-put and backdoor rule sets to provide coverage for emerging threats from these technologies.

Rule Pack Summary:

For a complete list of new and modified rules, click here.

Warning:

Sourcefire VRT rule packs often utilize enhancements made to Snort. Operators should upgrade to the latest revision or patch level for Snort to ensure these enhancements are available before using these rules.

About the VRT:

The Sourcefire VRT is a group of leading edge intrusion detection and prevention experts working to proactively discover, assess and respond to the latest trends in hacking activity, intrusion attempts and vulnerabilities. This team is also supported by the vast resources of the open source Snort community, making it the largest group dedicated to advances in the network security industry.

Posted by on May 27, 2008



VRT Tool 2008-05-20

Sourcefire VRT Tool Tool Update

Date: 2008-05-20

Synopsis:

The OfficeCat tool has been updated to include detection for a vulnerability in Microsoft Publisher.

Details:

The OfficeCat tool has been updated to include detection for a vulnerability in Microsoft Publisher. This vulnerability is identified with the CVE reference 2008-0119.

Please send feature requests and bug reports via email to vrt@sourcefire.com. Post cards and beer can be sent to the Sourcefire VRT, 9780 Patuxent Woods Drive, Columbia, MD 21045, USA.

Additionally, malware samples would be most appreciated, please contact vrt@sourcefire.com if you have some to share.

The OfficeCat tool is able to process Word, Excel, Publisher, Project and PowerPoint files and will return the appropriate reference information should possible exploit conditions be present in the document.

OfficeCat Tool Download:

Download zip archive here.

Usage Instructions:

  1. Unzip the archive
  2. Open a command shell
  3. Execute the tool executable with a document name for checking

About the VRT:

The Sourcefire VRT is a group of leading edge intrusion detection and prevention experts working to proactively discover, assess and respond to the latest trends in hacking activity, intrusion attempts and vulnerabilities.

About Sourcefire

Sourcefire, Inc., the world leader in intrusion prevention, is transforming the way organizations manage and minimize network security risks with its 3D Approach - Discover, Determine, Defend - to securing real networks in real-time. For more information about Sourcefire, please visit www.sourcefire.com.

Posted by on May 20, 2008



VRT Rules 2008-05-19

Sourcefire VRT Rules Update

Date: 2008-05-19

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting the Microsoft Malware Protection Engine.

Details:

Microsoft Security Bulletin (MS08-029):
The Microsoft Malware Protection Engine contains a programming error that may allow a remote attacker to cause a Denial of Service (DoS) on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 13798 and 13802.

Rule Pack Summary:

For a complete list of new and modified rules, click here.

Warning:

Sourcefire VRT rule packs often utilize enhancements made to Snort. Operators should upgrade to the latest revision or patch level for Snort to ensure these enhancements are available before using these rules.

About the VRT:

The Sourcefire VRT is a group of leading edge intrusion detection and prevention experts working to proactively discover, assess and respond to the latest trends in hacking activity, intrusion attempts and vulnerabilities. This team is also supported by the vast resources of the open source Snort community, making it the largest group dedicated to advances in the network security industry.

Posted by on May 19, 2008



VRT Rules 2008-05-13

Sourcefire VRT Rules Update

Date: 2008-05-13

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Microsoft Word and the Microsoft Jet Database Engine.

Details:

Microsoft Security Bulletin (MS08-026):
Microsoft Word contains a programming error that may allow a remote attacker to execute code on a vulnerable system. The problem occurs when Word parses a file that includes a malformed CSS value.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 SID 13790.

Microsoft Security Bulletin (MS08-028):
The Microsoft Jet Database Engine contains a programming error that may allow a remote attacker to execute code on an affected system.

Previously released rules are able to detect attacks targeting this vulnerability and are identified with GID 3 and SIDs 13626, 13629, 13630 and 13633.

The Sourcefire VRT has also added multiple rules in the web-client and specific-threats categories to provide coverage for emerging threats.

Rule Pack Summary:

For a complete list of new and modified rules, click here.

Warning:

Sourcefire VRT rule packs often utilize enhancements made to Snort. Operators should upgrade to the latest revision or patch level for Snort to ensure these enhancements are available before using these rules.

About the VRT:

The Sourcefire VRT is a group of leading edge intrusion detection and prevention experts working to proactively discover, assess and respond to the latest trends in hacking activity, intrusion attempts and vulnerabilities. This team is also supported by the vast resources of the open source Snort community, making it the largest group dedicated to advances in the network security industry.

Posted by on May 13, 2008



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