Ensure `sql_mode` Contains `STRICT_ALL_TABLES`

LowLevel 2Automatedtdsql

Description

Enabling STRICT_ALL_TABLES mode ensures that MySQL performs strict data type checking during data insertion/update, rather than silently truncating or converting values. 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).

How it is checked

Audit method: SQL query

sql_query

out=$(mysql ${TDSQL_MYSQL_OPTS:-} -NBe "SELECT CASE WHEN FIND_IN_SET('STRICT_ALL_TABLES', @@global.sql_mode) > 0 THEN 'compliant' ELSE 'noncompliant' END" 2>/dev/null) || exit 1; printf '%s\n' "$out"

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Add STRICT_ALL_TABLES to sql_mode via the OSS management platform, e.g. SET GLOBAL sql_mode = 'STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,STRICT_ALL_TABLES'; and persist it in the parameter template.

Properties

Operating systems: Any
Tags: tdsqlhardening
Reference: CIS Tencent TDSQL 10.3.22 Benchmark v1.0.0 - 4.2 Ensure `sql_mode` Contains `STRICT_ALL_TABLES`

Check this host

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

shell

tmaegis scan --target tdsql --level 2