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Configure auditing of successful file creations (ppc64le)

An XCCDF Rule

Description

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

## Successful file creation (open with O_CREAT)
-a always,exit -F arch=b64 -S openat,open_by_handle_at -F a2&0100 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
-a always,exit -F arch=b64 -S open -F a1&0100 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
-a always,exit -F arch=b64 -S creat -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create
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 create a file helps in investigation of actions which happened on the system.

ID
xccdf_org.ssgproject.content_rule_audit_create_success_ppc64le
Severity
Medium
References
Updated



Remediation - Shell Script

# Remediation is applicable only in certain platforms
if [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ] && { grep -q ppc64le /proc/sys/kernel/osrelease; }; then

cat << 'EOF' > /etc/audit/rules.d/30-ospp-v42-1-create-success.rules
## Successful file creation (open with O_CREAT)
-a always,exit -F arch=b64 -S openat,open_by_handle_at -F a2&0100 -F success=1 -F auid>=1000 -F auid!=unset -F key=successful-create

Remediation - Ansible

- name: Put contents into /etc/audit/rules.d/30-ospp-v42-1-create-success.rules according
    to policy
  copy:
    dest: /etc/audit/rules.d/30-ospp-v42-1-create-success.rules
    content: |
      ## Successful file creation (open with O_CREAT)