VRT Advisories


VRT Rules 2006-06-13

Sourcefire VRT Update

Date: 2006-06-13

Synopsis:

The Sourcefire VRT has learned of multiple vulnerabilites affecting Microsoft Internet Explorer, Apple Quicktime, Novell eDirectory, Sophos Anti-Virus and Symantec Anti-Virus products.

Details:

Microsoft Internet Explorer contains a programming error in the way that it processes MIME HTML links (mhtml) which are commonly embedded in HTML email. The error in processing the links may allow a remote attacker to overflow a fixed length buffer and execute code of their choosing on the target system.

Rules to detect attacks against this vulnerability are included in this rule pack and are identified as sids 6509 and 6510.

Apple Quicktime fails to properly check user supplied data which may allow a remote attacker to overflow a fixed length buffer and execute code of their choosing on the target host.

Rules to detect attacks against this vulnerability are included in this rule pack and are identified as sids 6505 and 6506.

Novell eDirectory Server contains a vulnerability that may allow an attacker to overflow a fixed length buffer and execute code of their choosing on an affected server. The vulnerability exists in the iMonitor NDS server and may be exploited via a specially crafted uri to the service.

A rule to detect attacks against this vulnerability is included in this rule pack and is identified as sid 6507.

Sophos Anti-Virus fails to properly process Microsoft CAB files. A remote attacker may be able to leverage this vulnerability to execute code of their choosing on the target host or cause a denial of service (DoS) against the Sophos Anti-Virus process.

A rule to detect attacks against this vulnerability is included in this rule pack and is identified as sid 6504.

Symantec Anti-Virus Real-Time Scan Service suffers from a programming error that may allow a remote attacker to execute code of their choosing on an affected host.

A rule to detect attacks against this vulnerability is included in this rule pack and is identified as sid 6512.

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 network security industry.