VRT Advisories

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VRT Rules 2009-01-20

Sourcefire VRT Rules Update

Date: 2009-01-20

Synopsis:

The Sourcefire VRT has added multiple rules to the web-activex, specific-threats, web-client and multimedia rule sets to provide coverage for emerging threats from these technologies.

Details:

Security Fix - This module pack resolves a potential recursive evaluation DoS condition in SO rules that utilize the built-in content match API function. Sourcefire recommends installing this release as soon as possible if high latency is encountered when dealing with large SMB file transfers.

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the web-activex, specific-threats, web-client and multimedia 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 Jan 20, 2009



VRT Rules 2009-01-13

Sourcefire VRT Rules Update

Date: 2009-01-13

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Microsoft products.

Details:

Microsoft Security Advisory MS09-001:
The Microsoft implementation of the Server Message Block (SMB) protocol contains programming errors that may allow a remote attacker to execute code on a vulnerable system. These issues do not require authentication for exploitation to occur.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3 and SIDs 15196 through 15227.

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 Jan 13, 2009



VRT Rules 2009-01-06

Sourcefire VRT Rules Update

Date: 2009-01-06

Synopsis:

The Sourcefire VRT has added multiple rules in the web-activex, specific-threats, policy, chat and misc categories to provide coverage for emerging threats from these technologies.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the web-activex, specific-threats, policy, chat and misc 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 Jan 06, 2009



VRT Rules 2008-12-23

Sourcefire VRT Rules Update

Date: 2008-12-23

Synopsis:

The Sourcefire VRT has added multiple rules in the web-activex, specific-threats, web-client and exploit categories to provide coverage for emerging threats from these technologies.

Details:

As a result of ongoing research, the Sourcefire VRT has added multiple rules to the web-activex, specific-threats, web-client 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 Dec 23, 2008



VRT Rules 2008-12-16

Sourcefire VRT Rules Update

Date: 2008-12-16

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Oracle and CUPS.

Details:

Oracle Internet Directory Denial of Service (CVE-2008-2595):
Oracle Internet Directory contains a programming error that may allow a remote attacker to cause a Denial of Service (DoS) against the application. This issue does not require authentication.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15149.

CUPS Integer Overflow (CVE-2008-5286):
A vulnerability in the _cupsImageReadPNG function in CUPS may allow a remote attacker to execute code on a vulnerable system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 1, SIDs 15145 and 15146.

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 Dec 16, 2008



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