VRT Advisories

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VRT Rules 2008-06-10

Sourcefire VRT Rules Update

Date: 2008-06-10

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting the Microsoft Internet Explorer, Speech API, DirectX, WINS, Active Directory and the Windows operating system.

Details:

Microsoft Security Advisory (MS08-031):
Microsoft Internet Explorer contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

A previously released rule will detect attacks targeting this vulnerability and is identified with GID 1 and SID 12279.

Microsoft Security Advisory (MS08-032):
The Microsoft Speech API contains a programming error that may allow a remote attacker to take control of a vulnerable system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3 and SIDs 13828 through 13833.

Microsoft Security Advisory (MS08-033):
Microsoft DirectX contains programming errors that may allow a remote attacker to execute code on a vulnerable system. These errors occur when DirectX attempts to parse malformed video and SAMI files.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 13823 and 13824.

Microsoft Security Advisory (MS08-034):
Microsoft WINS contains a programming error that may allow a remote attacker to take control of an affected system. The vulnerability occurs when WINS attempts to process malformed packet data.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 and SID 13826.

Microsoft Security Advisory (MS08-035):
Microsoft Active Directory is prone to a Denial of Service (DoS) attack that may be triggered by a remote attacker who is able to send malformed requests to the LDAP service.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 and SID 13835.

Microsoft Security Advisory (MS08-036):
The Microsoft Windows operating system is prone to a Denial of Service (DoS) attack that may be triggered by a remote attacker who is able to send malformed PGM packets to a vulnerable system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 13827 and 13825.

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 Jun 10, 2008



VRT Rules 2008-06-05

Sourcefire VRT Rules Update

Date: 2008-06-05

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Mozilla Firefox and CA ARCserve Backup.

Details:

CA ARCserve Backup Command Execution (CVE-2008-1329):
CA ARCserve Backup contains a programming error that may allow a remote attacker to execute commands on an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 SID 13839.

Mozilla Firefox Code Execution (CVE-2008-1236):
Mozilla Firefox, Thunderbird and Seamonkey contain a programming error that may allow a remote attacker to execute code on an affected machine.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 SID 13838.

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 Jun 05, 2008



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



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