V-260583

Discussion

Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. This requirement applies to Ubuntu 22.04 LTS performing security function verification/testing and/or systems and environments that require this functionality.

Check Content

Note: If a file integrity tool other than AIDE is employed, this requirement is not applicable.

Verify AIDE is configured and operating correctly by using the following command (this will take a few minutes): 
 
$ sudo aide -c /etc/aide/aide.conf --check 
 
Example output: 
 
Start timestamp: 2024-04-01 04:20:00 +1300 (AIDE 0.17.4) 
AIDE found differences between database and filesystem!! 
Ignored e2fs attributes: EIh 
... 
 
If AIDE is being used to perform file integrity checks but the command fails, this is a finding.