VRT Advisories


VRT Rules 2007-10-09

Sourcefire VRT Rules Update

Date: 2007-10-09

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting Microsoft products.

Details:

Microsoft Security Bulletin MS07-055:
Kodak Image Viewer contains a flaw that may allow a remote attacker to execute code via a specially crafted image file.

Rules to detect attacks targeting this vulnerability are included in this release and are identified as SIDs 12631 through 12634.

Microsoft Security Bulletin MS07-056:
Microsoft Outlook Express and Windows Mail for Vista contain a programming error that may allow a remote attacker to execute code on an affected host via an NNTP server response.

A shared object rule to detect attacks targeting this vulnerability is included in this release and is identified as GID 3 SID 12636.

Microsoft Security Bulletin MS07-057:
Microsoft Internet Explorer does not correctly handle errors encountered when handling file download queues. This may allow a remote attacker to execute code on a vulnerable host.

Previously released rules identified as SIDs 10504 and 10505 will generate events on attempts to exploit this vulnerability. Additionally, a rule to detect other attack vectors targeting this vulnerability is included in this release and is identified as SID 12630.

Microsoft Security Bulletin MS07-058:
Microsoft Windows systems using RPC may be vulnerable to a Denial of Service (DoS) condition that occurs when a malformed authentication request is transmitted to an affected host.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 12635.

Microsoft Security Bulletin MS07-059:
Microsoft Windows SharePoint Services and Microsoft Office SharePoint Server suffer from a programming error that may allow an attacker to execute code and escalate privileges on an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 12629.

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.