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V-239631

CAT II (Medium)

The SLES for vRealize audit system must be configured to audit failed attempts to access files and programs.

Rule ID

SV-239631r662344_rule

STIG

VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide

Version

V2R2

CCIs

CCI-000172

Discussion

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.

Check Content

Verify auditd is configured to audit failed file access attempts. There must be both an "-F exit=-EPERM" and "-F exit=-EACCES" for each access syscall:

# cat /etc/audit.rules /etc/audit/audit.rules | grep -e "-a exit,always" | grep -e "-S creat" | grep -e "-F exit=-EPERM"

# cat /etc/audit.rules /etc/audit/audit.rules | grep -e "-a exit,always" | grep -e "-S creat" | grep -e "-F exit=-EACCES"

There must be both an "-F exit=-EPERM" and "-F exit=-EACCES" for each access syscall. If not, this is a finding.

Fix Text

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 creat -F exit=-EPERM
-a exit,always -F arch=b64 -S creat -F exit=-EACCES
-a exit,always -F arch=b32 -S creat -F exit=-EPERM
-a exit,always -F arch=b32 -S creat -F exit=-EACCES