VRT Advisories

VRT Rules 2008-02-20

Sourcefire VRT Rules Update

Date: 2008-02-20


The Sourcefire VRT is aware of vulnerabilities affecting Adobe Acrobat, Adobe Acrobat Reader and Microsoft Active Directory.


Adobe Acrobat and Adobe Acrobat Reader (CVE-2008-0655):
Adobe Acrobat and Adobe Acrobat Reader are prone to multiple vulnerabilities that may allow a remote attacker to execute code on a vulnerable system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified as SIDs 13477 and 13478.

Microsoft Security Bulletin (MS08-003):
A vulnerability in Active Directory may allow a remote attacker to cause a Denial of Service (DoS) condition on a vulnerable host.

A shared object rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 and SID 13475.

The detection functionality in SID 13475 is only available when using Snort version This rule will not work with prior versions of Snort.

Rule Pack Summary:

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


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.