CVE-2023-51385

Name of the Vulnerable Software and Affected Versions OpenSSH versions prior to 9.6

Description The issue is related to OS command injection in OpenSSH, which might occur if a user name or host name has shell metacharacters and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name. The estimated number of potentially affected devices worldwide is around 116,742,290, mainly distributed in the United States, China, and other countries.

Recommendations Update to OpenSSH 9.6p1 to resolve the issue. As a temporary workaround, consider disabling the use of ProxyCommand until a patch is available. Restrict access to the vulnerable module to minimize the risk of exploitation. Avoid using the ProxyCommand directive in the OpenSSH configuration until the issue is resolved.