VRT Advisories


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.