[Bug 2031942] Re: AuthorizedPrincipalsCommand is ignored if AuthorizedKeysCommand is set

[Launchpad Bug Tracker]

** Merge proposal linked:
   https://code.launchpad.net/~michal-maloszewski99/ubuntu/+source/openssh/+git/openssh/+merge/450039

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https://bugs.launchpad.net/bugs/2031942

Title:
  AuthorizedPrincipalsCommand is ignored if AuthorizedKeysCommand is set

Status in openssh package in Ubuntu:
  In Progress
Status in openssh source package in Jammy:
  In Progress
Status in openssh source package in Lunar:
  In Progress
Status in openssh source package in Mantic:
  In Progress

Bug description:
  Versions of OpenSSH from 8.7p1 to 9.3p1 contain the following code:

                  if (*activep && options->authorized_keys_command == NULL)
                          *charptr = xstrdup(str + len);

  However, this is executed for both authorized_keys_command and
  authorized_principals_command. As a result, if authorized_keys_command
  is set (for instance, if using ec2-instance-connect), any
  AuthorizedPrincipalsCommand configuration in sshd_config is ignored.
  This is fixed in 9.4p1 with the attached patch.

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