VRT Advisories

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VRT Rules 2007-11-28

Sourcefire VRT Rules Update

Date: 2007-11-28

Synopsis:

The Sourcefire VRT is aware of a vulnerability in Apple QuickTime and has added multiple rules in the spyware-put and backdoor categories to provide coverage for emerging spyware and Trojan Horse threats. This release also contains an updated version of the detection engine for the Sourcefire 3D System.

Details:

Apple QuickTime RTSP buffer overflow (VU#659761): Apple QuickTime contains a buffer overflow vulnerability that may allow a remote attacker to execute code on an affected system. The problem occurs in the handling of Content-Type header information.

Rules to detect attacks targeting this vulnerability are included in this release and are identified as SIDs 12741 and 12742.

Additionaly, as a result of ongoing research, the Sourcefire VRT has added multiple rules to the spyware-put and backdoor rule sets to provide coverage for emerging threats from these technologies.

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 Nov 28, 2007



VRT Rules 2007-11-13

Sourcefire VRT Rules Update

Date: 2007-11-13

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting hosts using Microsoft Windows XP and Microsoft Windows Server 2003.

Details:

Microsoft Security Bulletin MS07-061:
The URL handling in Windows XP and Windows Server 2003, with Windows Internet Explorer 7 installed, allows remote attackers to execute arbitrary programs via invalid "%" sequences.

Previously released rules are able to detect attacks targeting this vulnerability and are identified as SIDs 12643, 12664, 12687 and 12688.

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 Nov 13, 2007



VRT Rules 2007-11-06

Sourcefire VRT Rules Update

Date: 2007-11-06

Synopsis:

The Sourcefire VRT has added multiple rules in the spyware-put and backdoor categories to provide coverage for emerging spyware and Trojan Horse threats.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the spyware-put and backdoor rule sets to provide coverage for emerging threats from these technologies.

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 Nov 06, 2007



VRT Rules 2007-10-26

Sourcefire VRT Rules Update

Date: 2007-10-26

Synopsis:

The Sourcefire VRT has expanded coverage for Microsoft Security Bulletin MS07-057.

Details:

Microsoft Security Bulletin MS07-057:
The URL handling in Windows XP and Windows Server 2003, with Windows Internet Explorer 7 installed, allows remote attackers to execute arbitrary programs via invalid "%" sequences.

The Sourcefire VRT has updated coverage to detect attacks targeting this vulnerability with additional rules. These rules are included in this release and are identified as SIDs 12687 and 12688.

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 Oct 26, 2007



VRT Rules 2007-10-23

Sourcefire VRT Rules Update

Date: 2007-10-23

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting CA BrightStor and has expanded coverage for Microsoft Security Bulletin MS07-057.

Details:

CA BrightStor ARCServe Buffer Overflow (CVE-2007-5004):
CA BrightStor ARCServe Backup suffers from an integer overflow that may allow remote attackers to execute code on an affected host.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 12665.

CA BrightStor ARCServe File Upload (CVE-2007-5005):
CA BrightStor ARCServe Backup does not correctly handle user-supplied input. This may allow a remote attacker to perform a directory traversal attack and subsequently upload and overwrite files on an affected host.

A rule to detect attacks targeting this vulnerability is included in this release and is identified as SID 12667.

Microsoft Security Bulletin MS07-057:
The URL handling in Windows XP and Windows Server 2003, with Windows Internet Explorer 7 installed, allows remote attackers to execute arbitrary programs via invalid "%" sequences.

The Sourcefire VRT has updated coverage to detect attacks targeting this vulnerability with an additional rule. This rule is included in this release and is identified as SID 12664.

RealNetworks RealPlayer Buffer Overflow (CVE-2007-5601):
RealNetworks RealPlayer ActiveX control allows remote attackers to execute code on a vulnerable system.

Previously released rules are able to detect attacks targeting this vulnerability and are identified as SIDs 10192 through 10194.

Additional rules are included in this release to detect attacks targeting this vulnerability and are identified as SID 12663 and SIDs 12668 through 12671.

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 Oct 23, 2007



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