Cisco Rules Update for Sourcefire 3D System

Date: 2017-09-06

This SRU number: 2017-09-06-001
Previous SRU number: 2017-09-05-001
Corresponding SEU number: 1731

Applies to:

SRU Change Summary:

Total new rules19
Total rule modifications47
Policy changeYes

Note: Rule updates are cumulative, so you do not need to install prior updates before installing this one. Also, because SEUs are cumulative, issues identified in previous SEUs can require your attention when you import the current SEU.

To review a cumulative list of recent feature updates and resolved issues since the last SEU you imported, use the link provided from this advisory on the Sourcefire Customer Support Site.


Talos is aware of a vulnerability affecting Apache Struts.


A coding deficiency exists in Apache Struts that may lead to remote code execution.

A rule to detect attacks targeting this vulnerability is included in this release and is identified with GID 1, SID 44315.

Talos has added and modified multiple rules in the browser-firefox, exploit-kit, file-identify, file-office, file-other, malware-cnc, os-linux, os-windows and server-webapp rule sets to provide coverage for emerging threats from these technologies.

Importing an update:

You can view instructions for importing rule updates and SEUs on the Sourcefire Customer Support Site and in the user documentation for the Sourcefire 3D System.

Detailed instructions can be found on the Sourcefire Customer Support Site in the downloads section for each product.

For Assistance:

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information about Cisco ASA devices, see What's New in Cisco Product Documentation.

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About Talos:

The Talos Security Intelligence and Research Group (Talos) is made up of leading threat researchers supported by sophisticated systems to create threat intelligence for Cisco products that detects, analyzes and protects against both known and emerging threats. Talos maintains the official rule sets of, ClamAV, and SpamCop. The team's expertise spans software development, reverse engineering, vulnerability triage, malware investigation and intelligence gathering.