Snort Subscriber Rules Update 2021-11-25

[Research <research () sourcefire com>]

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Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Microsoft Vulnerability CVE-2021-42321:
A remote code execution vulnerability exists in Microsoft Exchange
Server for which exploit code is publicly available.

Rules to detect attacks targeting this vulnerability are included in
this release and are identified with GID 1, SIDs 58637 through 58639. 

Talos has added and modified multiple rules in the server-other rule
sets to provide coverage for emerging threats from these technologies.


For a complete list of new and modified rules please see:

https://www.snort.org/advisories
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