{"id":"CVE-2023-51385","title":"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","summary":"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 ha…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-78"],"vendor":"openbsd","product":"openssh","affected":["openssh < 9.6","debian_linux = 10.0","debian_linux = 11.0","debian_linux = 12.0"],"patched":["openssh 9.6"],"published":"2023-12-18","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:17:12.563","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-51385","references":[{"url":"http://seclists.org/fulldisclosure/2024/Mar/21","label":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2023/12/26/4","label":"cve@mitre.org"},{"url":"https://github.com/openssh/openssh-portable/commit/7ef3787c84b6b524501211b11a26c742f829af1a","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html","label":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/202312-17","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20240105-0005/","label":"cve@mitre.org"},{"url":"https://support.apple.com/kb/HT214084","label":"cve@mitre.org"},{"url":"https://vin01.github.io/piptagole/ssh/security/openssh/libssh/remote-code-execution/2023/12/20/openssh-proxycommand-libssh-rce.html","label":"cve@mitre.org"},{"url":"https://www.debian.org/security/2023/dsa-5586","label":"cve@mitre.org"},{"url":"https://www.openssh.com/txt/release-9.6","label":"cve@mitre.org"},{"url":"https://www.openwall.com/lists/oss-security/2023/12/18/2","label":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2024/Mar/21","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2023/12/26/4","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2025/10/07/1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2025/10/12/1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/openssh/openssh-portable/commit/7ef3787c84b6b524501211b11a26c742f829af1a","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202312-17","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20240105-0005/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT214084","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vin01.github.io/piptagole/ssh/security/openssh/libssh/remote-code-execution/2023/12/20/openssh-proxycommand-libssh-rce.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5586","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.openssh.com/txt/release-9.6","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.openwall.com/lists/oss-security/2023/12/18/2","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-769027.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.19753,"epssPercentile":0.97369,"exploits":{"github":23,"githubRepos":["https://github.com/vin01/poc-proxycommand-vulnerable","https://github.com/FeatherStark/CVE-2023-51385","https://github.com/watarium/poc-cve-2023-51385"],"checkedAt":"2026-10-15T03:30:48.732Z"},"exploitAvailable":true,"ingestedAt":"2026-10-15T03:30:12.633Z","ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2025-08-15T14:20:00.630258Z"},"slug":"CVE-2023-51385","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `openssh < 9.6`\n- `debian_linux = 10.0`\n- `debian_linux = 11.0`\n- `debian_linux = 12.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `openssh 9.6`","depth":"twilight","depthScore":52,"depthScoreParts":{"impact":35.8,"likelihood":4,"exploitation":12,"ransomware":0},"changes":[]}