VRT Advisories


March 2011 Archive

VRT Rules 2011-03-29

Sourcefire VRT Rules Update

Date: 2011-03-29

Synopsis:

This release adds and modifies rules in several categories.

Details:

The Sourcefire VRT has added and modified multiple rules in the exploit, ftp, imap, misc, netbios, oracle, policy, specific-threats, sql, web-activex, web-client, web-misc and web-php 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.

why subscribe? || download rules

Posted by on Mar 29, 2011



VRT Rules 2011-03-24

Sourcefire VRT Rules Update

Date: 2011-03-24

Synopsis:

The Sourcefire VRT is aware of a problem concerning digital certificates issued by Comodo. Additionally, this release adds and modifies rules in several categories.

Details:

Comodo Digital Certificate Authority Fraud: The Sourcefire VRT is aware of the existance of nine fraudulent digital certificates issued by Comodo. Using these certificates, an attacker may be able to spoof content, perform various phishing attacks or perform man-in-the-middle attacks on sites and users relying on these certificates for identification purposes.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 18565 through 18573.

Additionally, the Sourcefire VRT has added and modified multiple rules in the ftp, imap, specific-threats, spyware-put, web-activex and web-client 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.

why subscribe? || download rules

Posted by on Mar 24, 2011



VRT Rules 2011-03-22

Sourcefire VRT Rules Update

Date: 2011-03-22

Synopsis:

This release adds and modifies rules in several categories.

Details:

As a result of ongoing research, the Sourcefire VRT has added and modified multiple rules in the botnet-cnc, deleted, exploit, misc, netbios, policy, rpc, smtp, specific-threats, web-activex, web-client and web-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.

why subscribe? || download rules

Posted by on Mar 22, 2011



VRT Rules 2011-03-15

Sourcefire VRT Rules Update

Date: 2011-03-15

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting Adobe Flash Player.

Details:

Adobe Security Advisory APSA11-01: Adobe Flash Player contains a programming error that may allow a remote attacker to execute code on an affected system. This problem affects the Microsoft Windows, Apple Mac OS, Linux and Solaris operating systems.

The Sourcefire VRT have reports of this vulnerability being exploited in the wild via an embedded Flash file in a Microsoft Excel document delivered via email.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SID 18543, GID 1, SIDs 18545 through 18554.

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.

why subscribe? || download rules

Posted by on Mar 15, 2011



VRT Rules 2011-03-08

Sourcefire VRT Rules Update

Date: 2011-03-08

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting products from Microsoft Inc.

Details:

Microsoft Security Advisory MS11-015:
Microsoft Windows Media Player contains a programming error that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 18496, 18497 and 18498.

Microsoft Security Advisory MS11-016:
Microsoft Office Groove contains a programming error that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 18499 and 18500.

Microsoft Security Advisory MS11-017:
Microsoft Remote Desktop Client contains a programming error that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 18494 and 18495.

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.

why subscribe? || download rules

Posted by on Mar 08, 2011



VRT Rules 2011-03-03

Sourcefire VRT Rules Update

Date: 2011-03-03

Synopsis:

This release adds and modifies rules in several categories.

Details:

As a result of ongoing research, the Sourcefire VRT has added and modified multiple rules in the backdoor, blacklist, botnet-cnc, chat, deleted, dos, exploit, icmpv6, imap, netbios, policy, scada, smtp, specific-threats, voip-sip, web-activex, web-cgi, web-client, web-misc and web-php 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.

why subscribe? || download rules

Posted by on Mar 03, 2011



VRT Rules 2011-03-02

Sourcefire VRT Rules Update

Date: 2011-03-02

Synopsis:

This release modifies two rules in the netbios category.

Details:

The Sourcefire VRT has modified two rules in the netbios rule set 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.

why subscribe? || download rules

Posted by on Mar 02, 2011