The latest SNORT® rule release from Cisco Talos has arrived. This new round of rules provides coverage for many of the vulnerabilities covered in Microsoft Patch Tuesday.
For more details on the vulnerabilities Microsoft disclosed this month, head to the Talos blog.
Here's a breakdown of this afternoon's rule release:
Here's a breakdown of this afternoon's rule release:
| Shared object rules | Modified shared object rules | New rules | Modified rules |
|---|---|---|---|
| 7 | 0 | 16 | 11 |
snort.conf in this release.Talos's rule release:
Microsoft Vulnerability CVE-2021-24095: A coding deficiency exists in DirectX 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 57259 through 57260.Microsoft Vulnerability CVE-2021-26411: A coding deficiency exists in Microsoft Internet Explorer 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 57268 through 57269.Microsoft Vulnerability CVE-2021-26855: A coding deficiency exists in Microsoft Exchange Server that may lead to remote code execution.Previously released rules will detect attacks targeting these vulnerabilities and have been updated with the appropriate reference information. They are also included in this release and are identified with GID 1, SIDs 57241 through 57244.Microsoft Vulnerability CVE-2021-26857: A coding deficiency exists in Microsoft Exchange Server that may lead to remote code execution.Previously released rules will detect attacks targeting these vulnerabilities and have been updated with the appropriate reference information. They are also included in this release and are identified with GID 1, SIDs 57233 through 57234.Microsoft Vulnerability CVE-2021-26858: A coding deficiency exists in Microsoft Exchange Server that may lead to remote code execution.Previously released rules will detect attacks targeting these vulnerabilities and have been updated with the appropriate reference information. They are also included in this release and are identified with GID 1, SIDs 57245 through 57246.Microsoft Vulnerability CVE-2021-26863: 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 57263 through 57264.Microsoft Vulnerability CVE-2021-26868: A coding deficiency exists in Microsoft Graphics Component 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 57261 through 57262.Microsoft Vulnerability CVE-2021-26877: 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 57274.Microsoft Vulnerability CVE-2021-26897: A coding deficiency exists in Microsoft Windows DNS server that may lead to remote code execution.A previously released rule will detect attacks targeting these vulnerabilities and has been updated with the appropriate reference information. It is included in this release and is identified with GID 1, SID 54518.Microsoft Vulnerability CVE-2021-27065: A coding deficiency exists in Microsoft Exchange Server that may lead to remote code execution.Previously released rules will detect attacks targeting these vulnerabilities and have been updated with the appropriate reference information. They are also included in this release and are identified with GID 1, SIDs 57245 through 57246 and 57252 through 57253.Microsoft Vulnerability CVE-2021-27076: A coding deficiency exists in Microsoft SharePoint Server 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 57275 through 57276.Talos also has added and modified multiple rules in the browser-firefox, browser-ie, file-image, file-pdf, indicator-compromise, netbios, os-other, os-windows, policy-other and server-webapp rule sets to provide coverage for emerging threats from these technologies.
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