This SRU number: 2021-01-11-001
Previous SRU number: 2021-01-06-001
Corresponding SEU number: 2260
|Total new rules||20|
|Total rule modifications||11|
Note: Rule updates are cumulative, so you do not need to install prior updates before installing this one.
To review a cumulative list of recent feature updates and resolved issues since the last Rule Updates you imported, use the link provided from this advisory on the Sourcefire Customer Support Site.
Talos is aware of vulnerabilities affecting products from Microsoft Corporation.
Microsoft Vulnerability CVE-2021-1647:
A coding deficiency exists in Microsoft Defender that may lead to remote code execution.
Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 1, SIDs 56857 through 56860.
Microsoft Vulnerability CVE-2021-1707:
A coding deficiency exists in Microsoft SharePoint 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 56865.
Microsoft Vulnerability CVE-2021-1709:
A coding deficiency exists in Microsoft Win32k that may lead to an escalation of privilege.
Rules to detect attacks targeting these vulnerabilities are included in this release and are identified with GID 1, SIDs 56849 through 56856.
Talos also has added and modified multiple rules in the browser-other, content-replace, file-executable, file-other, malware-cnc, os-windows and server-webapp rule sets to provide coverage for emerging threats from these technologies.
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 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.
Subscribe to What's New in Cisco Product Documentation, which lists all new and revised Cisco technical documentation, as an RSS feed and deliver content directly to your desktop using a reader application. The RSS feeds are a free service. If you have any questions or require assistance with Cisco ASA devices, please contact Cisco Support:
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 Snort.org, ClamAV, SenderBase.org and SpamCop. The team's expertise spans software development, reverse engineering, vulnerability triage, malware investigation and intelligence gathering.