HTTP: Microsoft Exchange Server CVE-2021-42321 Remote Code Execution
This signature detects attempts to exploit a known vulnerability against Microsoft Exchange Server. A successful attack can lead to arbitrary code execution.
Extended Description
Microsoft Exchange Server Remote Code Execution Vulnerability
Affected Products
Microsoft exchange_server
References
CVE: CVE-2022-23277
URL: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321
Short Name
HTTP:CTS:MS-EXCHNGE-SRVR-RCE
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
CVE-2021-42321 CVE-2022-23277 Code Exchange Execution Microsoft Remote Server
Release Date
11/25/2021
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3590
False Positive
Unknown
Vendors
Microsoft
CVSS Score
6.5