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TOSS must generate audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group".


Overview

Finding ID Version Rule ID IA Controls Severity
V-253024 TOSS-04-030790 SV-253024r958684_rule Medium
Description
Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable a new or disabled account. Auditing account modification actions provides logging that can be used for forensic purposes.
STIG Date
Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide 2024-05-30

Details

Check Text ( C-56477r825981_chk )
Verify TOSS generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group".

Check the auditing rules in "/etc/audit/audit.rules" with the following command:

$ sudo grep /etc/group /etc/audit/audit.rules

-w /etc/group -p wa -k identity

If the command does not return a line, or the line is commented out, this is a finding.
Fix Text (F-56427r825982_fix)
Configure TOSS to generate audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group".

Add or update the following file system rule to "/etc/audit/rules.d/audit.rules":

-w /etc/group -p wa -k identity

The audit daemon must be restarted for the changes to take effect.