1

I try to implement individual accountability for my RHEL systems using selinux and the audit.log. I followed the instructions given here: Log all commands run by admins on production servers

If I understand it correctly, the pam_loginuid.so should keep the UID which was used to login and set it as the AUID in the audit.log file. Unfortunately that does not work after su. When I login to the system and call cat /proc/self/loginuid it displays my correct UID. If I invoke sudo su - and call cat /proc/self/loginuid again, it displays 0. Also the ID 0 is used in the audit.log as AUID for commands I invoke after sudo su -.

What am I doing wrong here?

Here is my pam.d/sshd file:

auth       include      system-auth
account    required     pam_nologin.so
account    include      system-auth
password   include      system-auth
session    optional     pam_keyinit.so revoke
session    required     pam_loginuid.so
session    include      system-auth

I enabled audit=1 in /etc/grub.conf and edited /etc/audit/audit.rules as described in the post above.

0

Make sure you do not load pam_loginuid.so module from any of the following /etc/pam.d/ files:

  • su
  • sudo
  • files included in the files su and sudo, via @include

Edit: See also this bug https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741546

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