TMA-AIX-2.5
Ensure Allowlist violations are enabled
Description
This takes allowlist aka whitelisting to the next level - where all software, libraries and scripts that are not in the trusted signature database (TSD) in /etc/security/tsd/tsd.dat are blocked. Trusted Execution (TE) provides an additional layer of access controls to processes on top of the base Discretionary Access Controls. Monitoring how processes access system resources can improve awareness of system integrity. Audit: automated read-only check derived from the CIS audit procedure; it prints "compliant" when the control is met.
How it is checked
Audit method: Shell command
command -v trustchk >/dev/null 2>&1 || exit 1; out=$(trustchk -p stop_untrustd stop_on_chkfail te 2>/dev/null) || exit 1; r=compliant; for p in '^STOP_UNTRUSTD=(ON|TROJAN)$' '^STOP_ON_CHKFAIL=ON$' '^TE=ON$'; do printf '%s\n' "$out" | grep -Eq -- "$p" || r="missing: $p"; done; echo "$r"- Expected output
compliant
How it is fixed
Fix method: Guidance or infrastructure patch
Execute one of the following commands: trustchk -p stop_untrustd=on stop_on_chkfail=on te=on or trustchk -p stop_untrustd=trojan stop_on_chkfail=on te=on
Properties
- Operating systems
- Any
- Tags
- aixhardening
- Reference
- CIS IBM AIX 7 Benchmark v1.2.0 - 2.5 Ensure Allowlist violations are enabled
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
tmaegis scan --target aix --level 2