TMA-DOCKER-5.22
Ensure the default seccomp profile is not Disabled
HighLevel 1Automateddocker
Description
The default seccomp profile blocks dangerous syscalls; seccomp=unconfined removes that protection. Flags containers whose SecurityOpt disables seccomp. The audit inspects every running container (docker ps -q) and prints the offending names; a host with no running containers is compliant.
How it is checked
Audit method: Shell command
shell
ids=$(docker ps -q) || exit 1; [ -z "$ids" ] && { echo compliant; exit 0; }; out=$(docker inspect --format '{{.Name}}{{range .HostConfig.SecurityOpt}} {{.}}{{end}}' $ids) || exit 1; bad=$(printf '%s\n' "$out" | awk '/seccomp[:=]unconfined/{print $1}'); [ -z "$bad" ] && echo compliant || printf '%s\n' "$bad"- Expected output
compliant
How it is fixed
Fix method: Guidance or infrastructure patch
Redeploy without --security-opt seccomp=unconfined; supply a tailored profile with --security-opt seccomp=<profile.json> if needed.
Properties
- Operating systems
- Any
- Tags
- dockerruntime
- Reference
- CIS Docker Benchmark v1.9.0 - 5.22 Ensure the default seccomp profile is not Disabled
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
shell
tmaegis scan --target docker