VRT Advisories


VRT Rules 2007-09-25

Sourcefire VRT Rules Update

Date: 2007-09-25

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Firefox, ClamAV and the Apache HTTP Server.

Details:

Firefox QuickTime Argument Injection (CVE-2007-5045):
A remote attacker may be able to execute commands via a QuickTime Media Link (QTL) file on systems using Firefox prior to version 2.0.7.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 12593.

ClamAV Command Execution (CVE-2007-4560):
The clamav-milter used in ClamAV prior to version 0.91.2 when run in black hole mode, may allow a remote attacker to execute commands via shell meta-characters.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 12592.

Apache HTTP Server Denial of Service (CVE-2007-1863):
The Apache HTTP Server (httpd), when caching is enabled and a threaded Multi-Processing Module (MPM) is used, is vulnerable to a Denial of Service (DoS) condition via a request using certain Cache-Control headers.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 12591.

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.