VRT Advisories


July 2010 Archive

VRT Rules 2010-07-22

Sourcefire VRT Rules Update

Date: 2010-07-22

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Microsoft Windows and Siemens SCADA products.

Details:

Microsoft Windows Shell Shortcut Vulnerability (CVE-2010-2568): Microsoft Windows Shell contains a vulnerability that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities and are included in this release and are identified with GID 1, SIDs 17042 and 17043.

Siemens Simatic WinCC and PCS 7 Vulnerability (CVE-2010-2772): Siemens Simatic WinCC and PCS 7 SCADA systems use a known hard coded password which can allow a remote attacker to gain unauthorized access to vulnerable systems. This is currently being exploited in the wild by the Stuxnet worm.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 17044.

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.

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Posted by on Jul 22, 2010



VRT Rules 2010-07-13

Sourcefire VRT Rules Update

Date: 2010-07-13

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Microsoft products. This release also introduces three new rule groups.

Details:

Microsoft Security Advisory MS10-042:
Microsoft Help and Support Center contains a programming error that may allow a remote attacker to bypass security restrictions on an affected system. The error occurs when invalid hex-encoded characters are used as a parameter to a search query using the hcp:// URI schema.

A previously released rule to detect attacks targeting this vulnerability has been updated to include this reference and is identified with GID 1, SID 16665.

Microsoft Security Advisory MS10-043:
The Microsoft Canonical Display Driver (cdd.dll) contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

A previously released rule to detect attacks targeting this vulnerability has been updated to include this reference and is identified with GID 1, SID 16222.

Microsoft Security Advisory MS10-044:
Microsoft Access contains mulitple vulnerabilities that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities and are included in this release and are identified with GID 3, SIDs 17037, 17038 and 17039.

Microsoft Security Advisory MS10-045:
Microsoft Outlook contains a programming error that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities and are included in this release and are identified with GID 3, SIDs 17034, 17035 and 17036.

Additionally, this release introduces three new rule groups, botnet-cnc.rules, blacklist.rules and phishing-spam.rules. These rule groups represent a decentralization of existing coverage from spyware-put.rules and specific-threats.rules. The rules themselves are gleaned from honeypot and malware data collected by the Sourcefire VRT.

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.

Posted by on Jul 13, 2010



VRT Rules 2010-07-01

Sourcefire VRT Rules Update

Date: 2010-07-01

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting Adobe Acrobat and Reader.

Details:

Adobe Acrobat and Reader Remote Code Execution (CVE-2010-2204): Adobe Acrobat and Reader contain programming errors that may allow a remote attacker to execute code on an affected system. The error occurs in the CoolType typography engine. This vulnerability may also be exploited to cause a Denial of Service (DoS) condition against an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 16801.

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.

Posted by on Jul 01, 2010