VRT Advisories

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VRT Rules 2008-05-19

Sourcefire VRT Rules Update

Date: 2008-05-19

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting the Microsoft Malware Protection Engine.

Details:

Microsoft Security Bulletin (MS08-029):
The Microsoft Malware Protection Engine contains a programming error that may allow a remote attacker to cause a Denial of Service (DoS) on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 13798 and 13802.

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 May 19, 2008



VRT Rules 2008-05-13

Sourcefire VRT Rules Update

Date: 2008-05-13

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Microsoft Word and the Microsoft Jet Database Engine.

Details:

Microsoft Security Bulletin (MS08-026):
Microsoft Word contains a programming error that may allow a remote attacker to execute code on a vulnerable system. The problem occurs when Word parses a file that includes a malformed CSS value.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 SID 13790.

Microsoft Security Bulletin (MS08-028):
The Microsoft Jet Database Engine contains a programming error that may allow a remote attacker to execute code on an affected system.

Previously released rules are able to detect attacks targeting this vulnerability and are identified with GID 3 and SIDs 13626, 13629, 13630 and 13633.

The Sourcefire VRT has also added multiple rules in the web-client and specific-threats categories to provide coverage for emerging threats.

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 May 13, 2008



VRT Rules 2008-04-30

Sourcefire VRT Rules Update

Date: 2008-04-30

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting CA BrightStor ARCServe Backup and Oracle Database Server.

Details:

CA BrightStor ARCServe Backup (CVE-2007-1785):
A programming error in CA BrightStor ARCServe Backup may allow a remote attacker to execute code on a vulnerable system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with SIDs 13716 and 13717.

Oracle Database Server (CVE-2003-0095):
A programming error in Oracle Database Server may allow a remote attacker to execute code on a vulnerable system via a long username during login.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with SID 13719.

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 Apr 30, 2008



VRT Rules 2008-04-22

Sourcefire VRT Rules Update

Date: 2008-04-22

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting HP OpenView and Asterisk Open Source applications.

Details:

HP OpenView Network Node Manager Buffer Overflow (CVE-2008-1697):
A programming error in HP OpenView Network Node Manager may allow a remote attacker to cause a stack based buffer overflow. The condition may be exploited via a long URI in an HTTP request that the attacker could use to execute code on an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with SID 13715.

Asterisk RTP Buffer Overflow Vulnerabilities (CVE-2008-1289):
A programming error in Asterisk Open Source may allow a remote attacker to execute code on an affected system. The problem occurs in the handling of RTP payloads and payload sizes.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with SID 13693.

The Sourcefire VRT has also added multiple rules related to ActiveX controls and the detection of Tor network traffic.

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 Apr 22, 2008



VRT Rules 2008-04-08

Sourcefire VRT Rules Update

Date: 2008-04-08

Synopsis:

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

Details:

Microsoft Security Bulletin (MS08-019)
Microsoft Visio contains a programming error that may allow a remote attacker to execute code on an affected system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 SID 13665.

Microsoft Security Bulletin (MS08-020)
A vulnerability in the Microsoft DNS client may allow a remote attacker to spoof DNS replies and redirect traffic away from the intended target.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3 SID 13667.

Microsoft Security Bulletin (MS08-021)
A vulnerability in Microsoft GDI may allow a remote attacker to execute code on a vulnerable system via specially crafted EMF or WMF files.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1 SID 13678, GID 3 SID 13676 and GID 3 SID 13666.

Microsoft Security Bulletin (MS08-022)
A vulnerability in the Microsoft VBScript and JScript scripting engines may allow a remote attacker to execute code on a vulnerable machine via a specially crafted file hosted on the Internet.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 13448 and 13449.

Microsoft Security Bulletin (MS08-023)
Microsoft Internet Explorer contains vulnerabilities that may allow the execution of code by a remote attacker via various ActiveX controls.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3 and SIDs 13668 through 13675.

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 Apr 08, 2008



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