VRT Advisories

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VRT Rules 2008-08-12

Sourcefire VRT Rules Update

Date: 2008-08-12

Synopsis:

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

Details:

Microsoft Security Advisory MS08-041:
The Microsoft Access Snapshot Viewer ActiveX control contains a vulnerability that may allow a remote attacker to execute code on an affected system.

Previously released rules will detect attacks targeting this vulnerability and are identified with GID 1, SIDs 7981 and 7982 and GID 3, SIDs 13903 through 13910.

Microsoft Security Advisory MS08-043:
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 13972 and 13973.

Microsoft Security Advisory MS08-044:
Microsoft Office Filters contain 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 13946, 13947, 13958, 13970 and 13979.

Microsoft Security Advisory MS08-045:
Microsoft Internet Explorer contains multiple vulnerabilities that may allow an 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 13960, 13961, 13963, 13964, 13974 and 13980.

Microsoft Security Advisory MS08-046:
The Microsoft Windows Image Color Management System contains a programming error that may allow a remote attacker to execute code on an affected system via a malformed image file.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 13954.

Microsoft Security Advisory MS08-048:
Microsoft Outlook Express and Windows Mail contain a programming error that may result in information disclosure while viewing HTML files.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 3, SID 13962.

Microsoft Security Advisory MS08-049:
The Microsoft Windows Event System contains multiple vulnerabilities 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 13975 through 13979.

Microsoft Security Advisory MS08-050:
Microsoft Windows Messenger contains a programming error that may result in information disclosure via the scripting of an ActiveX control.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 13965 through 13968.

Microsoft Security Advisory MS08-051:
Microsoft PowerPoint and Microsoft Office PowerPoint Viewer contain programming errors that may allow a remote attacker to execute code on an affected system via a malformed PowerPoint file.

Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 3, SIDs 13969 and 13971.

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 Aug 12, 2008



VRT Rules 2008-07-29

Sourcefire VRT Rules Update

Date: 2008-07-29

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Sun Java Web Start, Oracle Database Server and DNS implementations.

Details:

Sun Java Web Start Buffer Overflow (CVE-2008-3111):
Sun Java Web Start contains programming errors 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 1 and SID 13950.

Oracle Database Server Buffer Overflow (CVE-2008-2607):
Oracle Database Server contains programming errors that may allow a remote attacker to cause a Denial of Service (DoS) or a buffer overflow that may allow the 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 1 and SID 13951.

DNS Cache Poisoning (CVE-2008-1447):
The DNS protocol as implemented in many distributions may allow a remote attacker to spoof DNS traffic via cache poisoning techniques. In addition to the detection provided by SID 13667 for this vulnerability, the Sourcefire VRT has added SIDs 13948 and 13949 to detect anomalous backscatter DNS traffic that would be generated during a DNS cache posioning attack.

Additionally, 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 Jul 29, 2008



VRT Rules 2008-07-22

Sourcefire VRT Rules Update

Date: 2008-07-22

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting IBM Lotus Domino, Novell GroupWise and Adobe RoboHelp.

Details:

IBM Lotus Domino Header Overflow (CVE-2008-2240):
IBM Lotus Domino contains a stack-based overflow condition that may allow a remote attacker to execute code on an affected system. The problem occurs when the application processes long HTTP Accept-Language headers.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 and SID 13924.

Novell GroupWise Overflow (CVE-2008-2703):
Novell GroupWise Messenger contains multiple buffer overflow conditions that may allow a remote attacker to execute code on an affected system. The problem occurs when the application processes malformed server responses.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 and SID 13926.

Adobe RoboHelp SQL Injection (CVE-2008-2991):
Adobe RoboHelp is vulnerable to multiple cross-site scripting attacks that may allow a remote attacker to inject script or HTML on an affected system.

Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 1, SIDs 13928 and 13929.

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 Jul 22, 2008



VRT Rules 2008-07-15

Sourcefire VRT Rules Update

Date: 2008-07-15

Synopsis:

The Sourcefire VRT is aware of vulnerabilities affecting Apple QuickTime and IBM Lotus Sametime.

Details:

Apple QuickTime Stack Overflow (CVE-2008-1022):
Apple QuickTime contains a programming error that may allow a remote attacker to cause a stack overflow and subsequently execute code on a vulnerable system. The problem occurs when the application processes a specially crafted VR movie file with an obj atom of zero size.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 and SID 13920.

IBM Lotus Sametime Stack Overflow (CVE-2008-2499):
IBM Lotus Sametime contains a programming error that may allow a remote attacker to cause a stack overflow and subsequently execute code on a vulnerable system. The problem occurs when the application processes a specially crafted URL.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1 and SID 13902.

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 Jul 15, 2008



VRT Rules 2008-07-11

Sourcefire VRT Rules Update

Date: 2008-07-11

Synopsis:

This release contains a fix for a problem that caused the rule for MS08-037 to generate false positive events. This release also contains multiple rules in the spyware-put and backdoor categories to provide coverage for emerging spyware and backdoor threats.

Details:

Microsoft Security Advisory (MS08-037):
Microsoft Windows DNS client and server are prone to a DNS spoofing vulnerability that may allow an attacker to redirect network traffic.

A rule to detect attacks targeting this vulnerability was previously released. A modified version that reduces false positive events is included in this release and is identified with GID 3 and SID 13887.

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 Jul 11, 2008



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