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The Linux PAM system must not grant sole access to admin privileges to the first user who logs into the console.


Overview

Finding ID Version Rule ID IA Controls Severity
V-4346 GEN000000-LNX00600 SV-44665r1_rule Medium
Description
If an unauthorized user has been granted privileged access while logged in at the console, the security posture of a system could be greatly compromised. Additionally, such a situation could deny legitimate root access from another terminal.
STIG Date
SUSE Linux Enterprise Server v11 for System z 2016-12-20

Details

Check Text ( C-42168r1_chk )
Ensure the pam_console.so module is not configured in any files in /etc/pam.d by:

# cd /etc/pam.d
# grep pam_console.so *

Or

# ls –la /etc/security/console.perms

If either the pam_console.so entry or the file /etc/security/console.perms is found then this is a finding.
Fix Text (F-38118r1_fix)
Ensure PAM is not configured to grant sole access of administrative privileges to the first user logged in at the console. Remove the console.perms file if it exists:
# rm /etc/security/console.perms