Snort Subscriber Rules Update 2021-10-12

[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-2021-40443:
A coding deficiency exists in Microsoft Windows Common Log File System
driver 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 58303 through 58304.

Microsoft Vulnerability CVE-2021-40449:
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 58288 through 58289.

Microsoft Vulnerability CVE-2021-40450:
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 58310 through 58313.

Microsoft Vulnerability CVE-2021-40466:
A coding deficiency exists in Microsoft Windows Common Log File System
driver 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 58308 through 58309.

Microsoft Vulnerability CVE-2021-40467:
A coding deficiency exists in Microsoft Windows Common Log File System
driver 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 58305 through 58306.

Microsoft Vulnerability CVE-2021-40470:
A coding deficiency exists in DirectX Graphics Kernel 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 58294 through 58295.

Microsoft Vulnerability CVE-2021-40487:
A coding deficiency exists in Microsoft SharePoint 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 58314 through 58319.

Microsoft Vulnerability CVE-2021-41357:
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 58286 through 58287.

Talos also has added and modified multiple rules in the malware-other,
os-windows, policy-other 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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