VRT Advisories


VRT Rules 2005-10-12

Sourcefire VRT Certified Rules Update

Date: 2005-10-12

Synopsis:

The Sourcefire Vulnerability Research Team (VRT) has learned of multiple vulnerabilities affecting hosts using the Microsoft Windows operating system.

Details:

Microsoft Security Bulletin MS05-047: A vulnerability exists in the Microsoft Plug and Play subsystem that may present a remote attacker with the opportunity to overflow a fixed length buffer, execute code on the vulnerable system and escalate privileges on the host to the extent that they could take complete control of the affected machine.

Rules to detect attacks against this vulnerability are included in this rule pack and are identified as sids 4253 through 4380.

Microsoft Security Bulletin MS05-051: A vulnerability exists in the Microsoft Distributed Transaction Coordinator (DTC) system that may present a remote attacker with the opportunity to overflow a fixed length buffer, execute code on the vulnerable system and escalate privileges on the host to the extent that they could take complete control of the affected machine.

Rules to detect attacks against this vulnerability are included in this rule pack and are identified as sids 4237 through 4252.

Microsoft Security Bulletin MS05-052: Multiple vulnerabilities exist in Microsoft Internet Explorer that may allow an attacker to execute code of their choosing on a vulnerable system. This can be achieved by manipulating the trust between Internet Explorer and ActiveX objects.

Rules to detect attacks against these vulnerabilities are included in this rule pack and are identified as sids 4198 through 4236.

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.