VRT Advisories

VRT Rules 2008-11-18

Sourcefire VRT Rules Update

Date: 2008-11-18


The Sourcefire VRT is aware of a vulnerability affecting the HP OpenView Network Node Manager. This release also introduces two new rule groups.


This releases introduces scada.rules and web-activex.rules as new rule groups.

SCADA Rules: This group contains rules that pertain to the Supervisory Control and Data Acquisition (SCADA) protocol used for computer controlled system monitoring and process control.

Web-ActiveX Rules: This group contains rule that were formerly in the web-client.rules group. It has been created to better manage the large number of ActiveX rules now in the VRT certified rule set.

HP OpenView Network Node Manager Buffer Overflow (CVE-2008-1852):
HP OpenView Network Node Manager is prone to a buffer overflow vulnerability which may allow a remote attacker to execute code on an affected system. The application fails to correctly check the number of user-supplied sub-arguments in a request which then triggers a memory allocation failure.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 15078.

Rule Pack Summary:

For a complete list of new and modified rules, click here.


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.