Rule ID
SV-240535r671346_rule
Version
V2R2
CCIs
Unsuccessful attempts to access files could be an indicator of malicious activity on a system. Auditing these events could serve as evidence of potential system compromise.
Verify auditd is configured to audit failed file access attempts. # cat /etc/audit.rules /etc/audit/audit.rules | grep -e "-a exit,always" | grep -e "-S ftruncate" | grep -e "-F success=0" There must be an audit rule for each of the access syscalls logging all failed accesses (-F success=0). If not, this is a finding.
Edit the audit.rules file and add the following line(s) to enable auditing of failed attempts to access files and programs: -a exit,always -F arch=b64 -S ftruncate -F success=0 -a exit,always -F arch=b32 -S ftruncate -F success=0