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

中级别 2人工审核tdsql

说明

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).

检查方式

审计方法: 人工审核

此项建议无法自动检查。当您传入 --include-manual 时，扫描结果会列出该项并附带这些说明。

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.

修复方式

修复方法: 操作指南或基础设施补丁

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.

属性

操作系统: 任意
标签: tdsqlprivileges
参考: CIS Tencent TDSQL 10.3.22 Benchmark v1.0.0 - 4.8 Ensure High-Risk Parameters Cannot Be Arbitrarily Modified via `SET GLOBAL`