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Configure auditing of successful file accesses

An XCCDF Rule

Description

Ensure that successful attempts to access a file are audited. The following rules configure audit as described above: 

## Successful file access (any other opens) This has to go last.
## These next two are likely to result in a whole lot of events
-a always,exit -F arch=b32 -S open,openat,openat2,open_by_handle_at -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-access
-a always,exit -F arch=b64 -S open,openat,openat2,open_by_handle_at -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-access
Load new Audit rules into kernel by running: 
augenrules --load
Note: This rule uses a special set of Audit rules to comply with OSPP 4.2.1. You may reuse this rule in different profiles. If you decide to do so, it is recommended that you inspect contents of the file closely and make sure that they are alligned with your needs.

Rationale

Auditing of successful attempts to access a file helps in investigation of activities performed on the system.

ID
xccdf_org.ssgproject.content_rule_audit_access_success
Severity
Medium
References
Updated



Remediation - Ansible

- name: Put contents into /etc/audit/rules.d/30-ospp-v42-3-access-success.rules according
    to policy
  copy:
    dest: /etc/audit/rules.d/30-ospp-v42-3-access-success.rules
    content: |
      ## Successful file access (any other opens) This has to go last.

Remediation - Shell Script

# Remediation is applicable only in certain platforms
if [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ]; then

cat << 'EOF' > /etc/audit/rules.d/30-ospp-v42-3-access-success.rules
## Successful file access (any other opens) This has to go last.
## These next two are likely to result in a whole lot of events