Ensure sudo commands use pty

チェック方法

監査方法: シェルコマンド

c=$(cat /usr/local/etc/sudoers /usr/local/etc/sudoers.d/* 2>/dev/null); [ -n "$c" ] || exit 1; printf '%s\n' "$c" | grep -Eiq "^[[:space:]]*Defaults[[:space:]]+([^#]+,[[:space:]]*)?!use_pty" && { echo "!use_pty set"; exit 0; }; printf '%s\n' "$c" | grep -Eiq "^[[:space:]]*Defaults[[:space:]]+([^#]+,[[:space:]]*)?use_pty([[:space:]]*,|[[:space:]]*$|[[:space:]]+#)" && echo compliant || echo "Defaults use_pty not set"

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

Edit the file /usr/local/etc/sudoers with visudo or a file in /usr/local/etc/sudoers.d/ with visudo -f <PATH_TO_FILE> and add the following line: Defaults use_pty Note: sudo will read each file in /usr/local/etc/sudoers.d, skipping file names that end in ~ or contain a . character to avoid causing problems with package manager or editor temporary/backup files. Files are parsed in sorted lexical order. That is, /usr/local/etc/sudoers.d/01_first will be parsed before /usr/local/etc/sudoers.d/10_second. Be aware that because the sorting is lexical, not numeric, /usr/local/etc/sudoers.d/1_whoops would be loaded after /usr/local/etc/sudoers.d/10_second. Using a consistent number of leading zeroes in the file names can be used to avoid such problems.

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。

tmaegis scan --target freebsd