TMA-TDSQL-3.14

Ensure Correct Permissions on the Temporary File Directory

中レベル 1自動tdsql

説明

The MySQL tmpdir may contain temporary tables, intermediate query results, and sort files. Its effective location must be placed on a controlled filesystem and be accessible only to the operating-system account that runs the database. Runs the mysql client against the TDSQL data node selected by TDSQL_MYSQL_OPTS (e.g. "-h10.0.0.5 -P4001 -utdsql_audit"); keep the password in ~/.my.cnf or a login path rather than MYSQL_PWD or the command line (see 1.4 and 1.5). Reads the effective tmpdir from the instance and requires each directory to be owned by a non-root (service) account and not writable by group or other (0700, or 0750 with an approved group). Run on the data-node host; also confirm with findmnt -T that it is on an approved filesystem.

チェック方法

監査方法: SQL クエリ

sql_query

t=$(mysql ${TDSQL_MYSQL_OPTS:-} -NBe "SELECT @@global.tmpdir" 2>/dev/null) || exit 1; bad=0; seen=0; IFS=':'; for d in $t; do seen=1; s=$(stat -Lc '%a %U' "$d" 2>/dev/null) || { bad=1; continue; }; p=${s% *}; o=${s#* }; [ $((0$p & 022)) -eq 0 ] || bad=1; [ "$o" != root ] || bad=1; done; [ $seen -eq 1 ] && [ $bad -eq 0 ] && echo compliant || echo noncompliant

期待される出力: compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

install -d -m 0700 -o tdsql -g tdsql /data/tdsql_tmp, set tmpdir to it through the TDSQL custom parameter template and restart the instance.

プロパティ

オペレーティングシステム: すべて
タグ: tdsqlpermissions
参照: CIS Tencent TDSQL 10.3.22 Benchmark v1.0.0 - 3.14 Ensure Correct Permissions on the Temporary File Directory

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target tdsql