Ensure Correct Permissions on Backup Directories

HighLevel 1Automatedtdsql

Description

TDSQL backup directories must have restrictive permissions. Backup files contain complete copies of the database. Key paths: Local backup: /tdsqlbackup/ (default) ZooKeeper backup: /data/home/zkback/ Checks /tdsqlbackup and /data/home/zkback (at least one must exist). Counts files that grant the listed permission to other users; any match fails, and a missing directory fails. (o+r). Expected: directories 0750.

How it is checked

Audit method: Shell command

shell

n=0; for p in "/tdsqlbackup" "/data/home/zkback"; do [ -e "$p" ] && n=$((n+1)); done; [ $n -gt 0 ] || exit 1; c=0; for p in "/tdsqlbackup" "/data/home/zkback"; do [ -e "$p" ] || continue; c=$((c + $(find "$p" ! -type l -perm /o+r -print 2>/dev/null | wc -l))); done; echo $c

Expected output: 0

How it is fixed

Fix method: Guidance or infrastructure patch

chmod 750 /tdsqlbackup /data/home/zkback; chown tdsql:tdsql /tdsqlbackup /data/home/zkback; find /tdsqlbackup -type f -exec chmod 640 {} +

Properties

Operating systems: Any
Tags: tdsqlpermissionsbackup
Reference: CIS Tencent TDSQL 10.3.22 Benchmark v1.0.0 - 3.7 Ensure Correct Permissions on Backup Directories

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target tdsql