Cisco FireSIGHT System Software Snort Rule Bypass Vulnerability

A vulnerability in Snort rule detection in Cisco FireSIGHT System Software could allow an unauthenticated, remote attacker to bypass configured rules that use Snort detection.

The vulnerability is due to improper handling of HTTP header parameters. An attacker could exploit this vulnerability by sending a crafted HTTP packet to the affected device. An exploit could allow the attacker to bypass configured rules that use Snort detection.

Cisco has not released software updates that address this vulnerability. Workarounds that address this vulnerability are not available.

This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160727-firesight[“https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160727-firesight”]