OS Command Injection The advisory has been revoked - it doesn't affect any version of package openssh-clients (opens in a new tab)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL9-OPENSSHCLIENTS-9391520
- published11 Mar 2025
- disclosed18 Dec 2023
Introduced: 18 Dec 2023
CVE-2023-51385 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openssh-clients package and not the openssh-clients package as distributed by RHEL.
In ssh in OpenSSH before 9.6, OS command injection 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.
References
- https://access.redhat.com/security/cve/CVE-2023-51385
- http://www.openwall.com/lists/oss-security/2025/10/07/1
- http://www.openwall.com/lists/oss-security/2025/10/12/1
- http://seclists.org/fulldisclosure/2024/Mar/21
- http://www.openwall.com/lists/oss-security/2023/12/26/4
- https://github.com/openssh/openssh-portable/commit/7ef3787c84b6b524501211b11a26c742f829af1a
- https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html
- https://security.gentoo.org/glsa/202312-17
- https://security.netapp.com/advisory/ntap-20240105-0005/
- https://support.apple.com/kb/HT214084
- https://vin01.github.io/piptagole/ssh/security/openssh/libssh/remote-code-execution/2023/12/20/openssh-proxycommand-libssh-rce.html
- https://www.debian.org/security/2023/dsa-5586
- https://www.openssh.com/txt/release-9.6
- https://www.openwall.com/lists/oss-security/2023/12/18/2
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://github.com/vin01/poc-proxycommand-vulnerable