Ensure Security Auditing Logs Are Retained for 30 Days

中レベル 1自動macos

説明

The macOS audit capability contains important information to investigate security or operational issues. This resource is only completely useful if it is retained long enough to allow technical staff to find the root cause of anomalies in the records. Retention can be set to respect both size and longevity. To retain as much as the recommendation is to use the following: expire-after:30d This recommendation is based on minimum amount of days retained for review and investigation. When a third party tool is in use to allow remote logging or the store and forwarding of logs, this is a supplemental source of data. Note: If you organization has storage constraint issues, you can add a storage value limit to expire-after: in addition to days retained. For example: expire-after:30d OR 5G or expire-after:30d OR 10000M. In addition, your organization may also look at the what audit flags are...

チェック方法

監査方法: シェルコマンド

shell

l=$(/usr/bin/grep -e "^expire-after" /etc/security/audit_control 2>/dev/null) || exit 1
d=$(printf '%s' "$l" | /usr/bin/grep -oE '[0-9]+d' | /usr/bin/head -1 | /usr/bin/tr -d d)
if [ -n "$d" ] && [ "$d" -ge 30 ]; then echo compliant; else echo "$l"; fi

期待される出力: compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

Terminal Method: Perform the following to set the audit retention length: Edit the /etc/security/audit_control file so that expire-after: is at least 30d

プロパティ

オペレーティングシステム: macos-14
タグ: loggingmacossonoma
参照: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 3.4 Ensure Security Auditing Logs Are Retained for 30 Days

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target macos