2006-10-10

Synopsis:

Microsoft has released a number of bulletins regarding vulnerabilities in its products. A number of these issues have been previously covered by Sourcefire VRT rule packs and by the OfficeCat tool.

Details:

Microsoft Security Bulletin MS06-056: The Microsoft .NET Framework is vulnerable to a cross site scripting vulnerability that may allow remote attackers to access sensitive information.

Rules to detect attacks targeting this vulnerability were previously released and are identified as sids 1497 and 7070.

Microsoft Security Bulletin MS06-057: Multiple vulnerabilities exist in the way that Microsoft Internet Explorer handles ActiveX controls. It may be possible for an attacker to execute code of their choosing on a system using Internet Explorer.

Rules to detect attacks targeting this vulnerability were previously released in SEU 40 and SEU 44 and are identified as sids 7985 through 7988 and sid 8419.

Microsoft Security Bulletin MS06-063: The mailslot service is used on hosts using the Microsoft Operating System to handle messages between hosts on a domain.

An unchecked buffer in the mailslot server service may allow an attacker to overflow a fixed length buffer and execute code of their choosing on an affected host.

Rules to detect attacks targeting this vulnerability were previously released in SEU 33 and are identified as sids 7035 through 7046.

Microsoft Security Bulletins MS06-058, MS06-059 and MS06-060: Microsoft Office products (Word, Excel and Powerpoint) are prone to vulnerabilities that may allow an attacker to execute code of their choosing on an affected host via a malformed file.

The OfficeCat tool, previously released by the Sourcefire VRT, is able to process these files to determine if possible exploit conditions exist in an Office document.

Note: All previously released rules are contained in the latest SEU, it is not necessary to install prior SEUs to get the relevant rules mentioned in this advisory.

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.