Ensure events that modify the sudo log file are collected

高レベル 2自動freebsd

説明

Monitor the sudo log file. If the system has been properly configured to disable the use of the su command and force all administrators to have to log in first and then use sudo to execute privileged commands, then all administrator commands will be logged to /var/log/sudo.log. Changes in /var/log/sudo.log indicate that an administrator has executed a command or the log file itself has been tampered with. Audit: the global flags: line in /etc/security/audit_control must include fa,fc,fd,fm,fr,fw.

チェック方法

監査方法: シェルコマンド

shell

l=$(grep "^flags:" /etc/security/audit_control 2>/dev/null) || exit 1; f=",${l#flags:},"; r=compliant; for c in fa fc fd fm fr fw; do case "$f" in *,$c,*|*,+$c,*) ;; *) r="flags missing $c";; esac; done; echo "$r"

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

Add the classes fa,fc,fd,fm,fr,fw to the flags: line in /etc/security/audit_control, then run audit -s.

プロパティ

オペレーティングシステム: すべて
タグ: freebsdaudit
参照: CIS FreeBSD 14 Benchmark v1.0.1 - 5.2.3.2 Ensure events that modify the sudo log file are collected

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 freebsd --level 2