VRT Advisories


VRT Rules 2008-02-12

Sourcefire VRT Rules Update

Date: 2008-02-12

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting hosts using the Microsoft Windows operating system.

Details:

Microsoft Security Bulletin (MS08-004):
Hosts using the Microsoft Windows operating system may be vulnerable to a Denial of Service (DoS) attack. The problem lies in the processing of DHCP requests provided to a host system by a server.

A shared object rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 and SID 13450.

Microsoft Security Bulletin (MS08-008):
A vulnerability in OLE Automation may present an attacker with the opportunity to execute code on an affected system via a specially crafted web page.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3 and SIDs 13457 through 13460 and SID 13474.

Microsoft Security Bulletin (MS08-009):
Microsoft Word contains a vulnerability that may allow an attacker to execute code on an affected host.

A shared object rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 and SID 13469.

Microsoft Security Bulletin (MS08-010):
Microsoft Internet Explorer contains a number of memory corruption vulnerabilities that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3 and SIDs 13451 through 13456.

Microsoft Security Bulletin (MS08-011):
Microsoft Works File Converter contains vulnerabilities that may allow an attacker to execute code on an affected system via a specially crafted Works file.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3 and SIDs 13466 and 13472.

Microsoft Security Bulletin (MS08-012):
Microsoft Publisher contains two vulnerabilities that may allow a remote attacker to execute code on an affected system via specially crafted Publisher files.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3 and SIDs 13470 and 13471.

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.