Snort rule update for Jan. 12, 2021 — Microsoft Patch Tuesday

 The latest SNORT® rule release from Cisco Talos has arrived. This new round of rules provides coverage for all of the vulnerabilities covered in Microsoft Patch Tuesday.

For more details on the vulnerabilities Microsoft disclosed this week, head to the Talos blog.
Here's a breakdown of this evening's rule release:
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Shared object rules Modified shared object rules New rules Modified rules
2 0 18 11

There were no changes made to the snort.conf in this release.
Talos's rule release:
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 subscribe to Talos' newest rule detection functionality for as low as $29 a year with a personal account. Be sure and see our business pricing as well here. Make sure and stay up to date to catch the most emerging threats.