Ensure High-Risk Parameters Cannot Be Arbitrarily Modified via `SET GLOBAL`

SedangLevel 2Tinjauan manualtdsql

Deskripsi

Users with the SUPER or SYSTEM_VARIABLES_ADMIN privilege can modify system variables online via SET GLOBAL, including security-related parameters (such as sql_mode, read_only).

Cara pemeriksaan

Metode audit: Tinjauan manual

Rekomendasi ini tidak dapat diperiksa secara otomatis. Pemindaian akan menampilkannya beserta petunjuk ini saat Anda memberikan opsi --include-manual.

Run SELECT User, Host FROM mysql.user WHERE Super_priv = 'Y' AND User NOT LIKE 'tdsqlsys%'; and check SYSTEM_VARIABLES_ADMIN grants (SELECT * FROM mysql.global_grants WHERE PRIV = 'SYSTEM_VARIABLES_ADMIN'). Only TDSQL system accounts may hold them; with audit logging enabled, review the audit trail for unexpected SET GLOBAL statements.

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

1. Allow only TDSQL system accounts (tdsqlsys_*) to hold the SUPER privilege. 2. Have business accounts modify parameters uniformly through the OSS management interface. 3. Enable audit logging of SET GLOBAL operations.

Properti

Sistem operasi: Apa saja
Tag: tdsqlprivileges
Referensi: CIS Tencent TDSQL 10.3.22 Benchmark v1.0.0 - 4.8 Ensure High-Risk Parameters Cannot Be Arbitrarily Modified via `SET GLOBAL`