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VuXML IDDescription
2a1b931f-2b86-11ec-8acd-c80aa9043978OpenSSH -- OpenSSH 6.2 through 8.7 failed to correctly initialise supplemental groups when executing an AuthorizedKeysCommand or AuthorizedPrincipalsCommand

OpenBSD Project reports:

sshd(8) from OpenSSH 6.2 through 8.7 failed to correctly initialise supplemental groups when executing an AuthorizedKeysCommand or AuthorizedPrincipalsCommand, where a AuthorizedKeysCommandUser or AuthorizedPrincipalsCommandUser directive has been set to run the command as a different user. Instead these commands would inherit the groups that sshd(8) was started with.

Depending on system configuration, inherited groups may allow AuthorizedKeysCommand/AuthorizedPrincipalsCommand helper programs to gain unintended privilege.

Neither AuthorizedKeysCommand nor AuthorizedPrincipalsCommand are enabled by default in sshd_config(5).


Discovery 2021-09-26
Entry 2021-10-12
openssh-portable
openssh-portable-hpn
openssh-portable-gssapi
ge 6.2.p1,1 lt 8.7.p1_2,1

CVE-2021-41617
https://www.openssh.com/txt/release-8.8