Snort Subscriber Rules Update 2021-02-09

[Research <research () sourcefire com>]

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Talos Snort Subscriber Rules Update

Synopsis:
Talos is aware of vulnerabilities affecting products from Microsoft
Corporation.

Details:
Microsoft Vulnerability CVE-2021-1698:
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 57106 through 57107.

Microsoft Vulnerability CVE-2021-1732:
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 57103 through 57104.

Microsoft Vulnerability CVE-2021-24072:
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 57108.

Microsoft Vulnerability CVE-2021-24078:
A coding deficiency exists in Microsoft Windows DNS server 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 57123.

Microsoft Vulnerability CVE-2021-24094:
A coding deficiency exists in Microsoft Windows TCP/IP 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 57128.

Talos also has added and modified multiple rules in the file-image,
file-other, os-windows, server-apache, server-iis and server-webapp
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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