Ensure Appropriate Core Dump Limits Are Set

RendahLevel 2Tinjauan manualtdsql

Deskripsi

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.

Cara pemeriksaan

Metode audit: Tinjauan manual

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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.

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

# 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)

Properti

Sistem operasi: Apa saja
Tag: tdsqlos
Referensi: CIS Tencent TDSQL 10.3.22 Benchmark v1.0.0 - 1.7 Ensure Appropriate Core Dump Limits Are Set