TMA-TDSQL-3.9
Ensure Correct Permissions on MySQL Binary Log Files
HighLevel 1Automatedtdsql
Description
Binary log files (binlog.*, mysql-bin.*) contain records of all data modifications and must have restrictive permissions. Searches /data/tdsql (the benchmark path). Counts binlog.*, mysql-bin.* and relay-log.* files readable by other users; expected 0640.
How it is checked
Audit method: Shell command
shell
n=0; for p in "/data/tdsql"; do [ -e "$p" ] && n=$((n+1)); done; [ $n -gt 0 ] || exit 1; c=0; for p in "/data/tdsql"; do [ -e "$p" ] || continue; c=$((c + $(find "$p" -type f \( -name 'binlog.*' -o -name 'mysql-bin.*' -o -name 'relay-log.*' \) -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
find /data/tdsql \( -name 'binlog.*' -o -name 'mysql-bin.*' -o -name 'relay-log.*' \) -exec chmod 640 {} +
Properties
- Operating systems
- Any
- Tags
- tdsqlpermissionslogging
- Reference
- CIS Tencent TDSQL 10.3.22 Benchmark v1.0.0 - 3.9 Ensure Correct Permissions on MySQL Binary Log Files
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
shell
tmaegis scan --target tdsql