V-275670

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 OS performing security function verification/testing and/or systems and environments that require this functionality.

Check Content

Verify that Advanced Intrusion Detection Environment (AIDE) is configured and operating correctly by using the following command (this will take a few minutes): 
 
Note: If AIDE is not installed, this requirement is not applicable. 
 
     $ 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.