Ensure Appropriate Core Dump Limits Are Set

低等級 2人工審核tdsql

說明

Core dumps of TDSQL processes may contain sensitive data (encryption keys, passwords, query data). Core dump generation should be restricted in production. Note: TDSQL's start.sh sets ulimit -c unlimited by default.

檢查方式

稽核方法: 人工審核

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Run ulimit -c for the TDSQL service account, cat /proc/sys/kernel/core_pattern and grep -r 'ulimit.*-c' <tdsql>/bin/start.sh (TDSQL start.sh sets unlimited). Core dumps must either be disabled or written only to a restricted directory (e.g. /var/core/tdsql, mode 700, owned by tdsql) with a size limit set by policy.

修補方式

修補方法: 操作指南或基礎設施修補檔

# Create a restricted core dump directory mkdir -p /var/core/tdsql chmod 700 /var/core/tdsql chown tdsql:tdsql /var/core/tdsql echo 'kernel.core_pattern = /var/core/tdsql/core.%e.%p.%t' >> /etc/sysctl.conf sysctl -p # Modify start.sh for production: # From: ulimit -c unlimited # To: ulimit -c 0 (or a reasonable limit)

屬性

作業系統: 不限
標籤: tdsqlos
參考資料: CIS Tencent TDSQL 10.3.22 Benchmark v1.0.0 - 1.7 Ensure Appropriate Core Dump Limits Are Set