VRT Advisories

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VRT Rules 2009-06-12

Sourcefire VRT Rules Update

Date: 2009-06-12

Synopsis:

The Sourcefire VRT is aware of multiple vulnerabilities affecting Adobe Acrobat, Adobe Reader and Symantec products.

Details:

Adobe Acrobat and Reader Remote Vulnerability (CVE-2009-1859):
Adobe Acrobat and Acrobat Reader contain programming errors that may allow a remote attacker to execute code on a vulnerable system. The errors occur in the processing of embedded image files in a PDF document.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15562.

Symantec Alert Management System Buffer Overflow (CVE-2009-1430):
The Symantec Alert Management System contains multiple vulnerabilities that may allow a remote attacker to execute code on an affected system.

A rule to detect attacks targeting these vulnerabilities is included in this release and is identified with GID 1, SID 15555.

Symantec Alert Management System Code Execution (CVE-2009-1431):
The Symantec Alert Management System contains multiple vulnerabilities that may allow a remote attacker to execute code on an affected system.

A rule to detect attacks targeting these vulnerabilities is included in this release and is identified with GID 1, SID 15556.

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 Jun 12, 2009



VRT Rules 2009-06-09

Sourcefire VRT Rules Update

Date: 2009-06-09

Synopsis:

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

Details:

Microsoft Security Advisory MS09-018:
The Microsoft Windows LDAP implementation contains programming errors that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 15522 and 15527.

Microsoft Security Advisory MS09-019:
Microsoft Internet Explorer contains multiple vulnerabilities that 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 3, SIDs 15529, 15531, 15534 through 15536, 15538 and 15540.

Additionally, a previously released rule identified with GID 1, SID 7070 will also detect attacks targeting these vulnerabilities.

Microsoft Security Advisory MS09-027:
Microsoft Word contains a programming error that 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 GID 3, SIDs 15524 and 15525.

Microsoft Security Advisory MS09-021:
Microsoft Excel contains programming errors that may allow a remote attacker to execute code on an affected system.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 15519 through 15521, 15537, 15539, 15541 and 15542.

Microsoft Security Advisory MS09-022:
The Microsoft Print Spooler Service contains programming errors that 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 3, SIDs 15523 and 15528.

Microsoft Security Advisory MS09-023:
The Microsoft Windows Search utility may allow information disclosure via the viewing of a specially crafted file.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 15530, 15532 and 15533.

Microsoft Security Advisory MS09-024:
The Microsoft Works font converter contains a programming error that may allow a remote attacker to execute code on a vulnerable system.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15526.

Microsoft Security Advisory MS09-020:
Microsoft Internet Information Server (IIS) contains programming errors that may allow a remote attacker to access information from the server without the need for authentication.

These vulnerabilities are detected by the HTTP Inspect preprocessor.

Additionally, this release contains a bug fix for a previously released rule identified with GID 3, SID 13954 that may, under some circumstances, cause performance issues.

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 Jun 09, 2009



VRT Rules 2009-05-29

Sourcefire VRT Rules Update

Date: 2009-05-29

Synopsis:

The Sourcefire VRT is aware of a vulnerability affecting Microsoft DirectShow.

Details:

Microsoft DirectShow Buffer Overflow (CVE-2009-1537):
Microsoft DirectShow contains a programming error that may allow a remote attacker to execute code on an affected system. The problem occurs when DirectShow parses a specially crafted QuickTime file.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 15517. This rule requires GID 1, SID 15516 to be enabled.

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 29, 2009



VRT Rules 2009-05-26

Sourcefire VRT Rules Update

Date: 2009-05-26

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting the NTP daemon and Oracle Database systems.

Details:

NTP Daemon Buffer Overflow (CVE-2009-1252):
The NTP daemon is vulnerable to a stack overflow when OpenSSL and autokey are enabled. A remote attacker may execute code on an affected system via an extension field in an NTP packet.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15514.

Oracle Database SQL Injection (CVE-2009-0978):
The Workspace Manager component in Oracle Database contains a programming error that may allow a remote attacker to execute an SQL injection attack.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15515.

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 26, 2009



VRT Rules 2009-05-18

Sourcefire VRT Rules Update

Date: 2009-05-18

Synopsis:

This release contains two new rules and multiple rule modifications.

Details:

Two new rules have been added to address a vulnerability in Samba. These rules are identified with GID 1, SIDs 15507 and 15508.

Additionally, multiple rules have been updated to take advantage of the new DCERPC preprocessor.

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 18, 2009



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