Vulnerabilities in the Microsoft Operating Systemi, 3Com TFP Service and Rule Updates to Reduce False Positive Events

2006-12-07

Synopsis:

The VRT has continued research into vulnerabilities affecting the Microsoft Operating System and has introduced new rules and modified existing rules to provide coverage for exploitation attempts targeting these vulnerabilities.

Details:

Microsoft Security Bulletin MS06-068: A vulnerability in the way that the Microsoft Agent handles .acf files may allow a remote attacker to execute code on an affected system. The code could be executed with the permissions of the current user, in some cases this might lead to the execution of code with administrative privileges.

Rules to detect attacks targeting this vulnerability are included in this release and are identified as sids 9432 and 9433.

3Com TFTP Service CVE-2006-6183: The 3Com TFTP Service suffers from multiple buffer overflow vulnerabilities. A remote attacker may be able to cause a Denial of Service (DoS) or execute code of their choosing on an affected system by supplying excess data in a GET or PUT command to the service.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as sid 9621.

Microsoft Security Bulletin MS03-026: After continuing research into a vulnerability affecting Microsoft RPC, the VRT has modified a number of existing rules and introduced new rules to reduce false positive events and to provide greater coverage for possible additional attack vectors.

Rules to detect attacks targeting this vulnerability are included in this release and are identified as sids 9447 through 9618.

For Assistance:

• Visit the Sourcefire Customer Support site at https://support.sourcefire.com.
• Email Sourcefire Customer Support at support@sourcefire.com.
• Call Sourcefire Customer Support at 410.423.1901 or 1.800.917.4134.

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.

About Sourcefire
Sourcefire, Inc. (Nasdaq: FIRE), Snort creator and open source innovator, is a world leader in Enterprise Threat Management (ETM) solutions. Sourcefire is transforming the way Global 2000 organizations and government agencies manage and minimize network security risks with its 3D Approach - Discover, Determine, Defend - to securing real networks. The Sourcefire 3D System is the first to unify IPS, NBA, NAC and Vulnerability Assessment technologies under the same management console. This ETM approach affords customers with an efficient and effective layered security defense - protecting network assets before, during and after an attack. Through the years, Sourcefire has been consistently recognized for its innovation and industry leadership by customers, media and industry analysts alike - with more than 30 awards and accolades. Recently, Sourcefire was positioned in the Leaders Quadrant of Gartner's "Magic Quadrant for Network Intrusion Prevention System Appliances 2H06" report, and the Sourcefire 3D System was named "Best Security Solution" at the 2006 SC Magazine Awards. Today, the names Sourcefire and founder Martin Roesch have grown synonymous with innovation and network security intelligence.

For more information about Sourcefire, please visit www.sourcefire.com.