NGINX
TMA-NGINX-2.3.2
Ensure access to NGINX directories and files is restricted
Description
The NGINX configuration directory (/etc/nginx or equivalent) and its contents should have restrictive permissions to enforce the principle of least privilege. Directories should be accessible only by the root user and the root group (and potentially read/execute by the group), but not by others. Files should be readable/writable by root and readable by the group, but inaccessible to others. Counts directories under /etc/nginx more permissive than 750 and files more permissive than 640; expects 0. Evaluated on the merged configuration printed by `nginx -T` (all included files; needs permission to read them). CIS marks this recommendation Manual; the automated check implements its audit procedure.
How it is checked
Audit method: Shell command
[ -d /etc/nginx ] || exit 1; { find /etc/nginx -type d -perm /027 -print; find /etc/nginx -type f -perm /137 -print; } 2>/dev/null | wc -l- Expected output
0
How it is fixed
Fix method: Guidance or infrastructure patch
find /etc/nginx -type d -exec chmod 750 {} + ; find /etc/nginx -type f -exec chmod 640 {} + (keep private keys at 400).
Properties
- Operating systems
- Any
- Tags
- nginxpermissions
- Reference
- CIS NGINX Benchmark v3.0.0 - 2.3.2 Ensure access to NGINX directories and files is restricted
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
tmaegis scan --target nginx