TMA-COS-5.2.3

Ensure password hashing algorithm is SHA-512

高レベル 2自動cos

説明

The commands below change password encryption from md5 to sha512 (a much stronger hashing algorithm). All existing accounts will need to perform a password change to upgrade the stored hashes to the new algorithm. The SHA-512 algorithm provides much stronger hashing than MD5, thus providing additional protection to the system by increasing the level of effort for an attacker to successfully determine passwords. Note that these changes only apply to accounts configured on the local system.

チェック方法

監査方法: シェルコマンド

shell

bad=0; for p in /etc/pam.d/system-auth /etc/pam.d/system-password; do grep -Pq "^\h*password\h+([^#\n\r]+)?\h+pam_unix\.so\h+([^#\n\r]+\h+)?sha512\b" $p 2>/dev/null || bad=1; done; [ $bad -eq 0 ] && echo compliant || echo noncompliant

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

Set password hashing algorithm to sha512. Many distributions provide tools for updating PAM configuration, consult your documentation for details. If no tooling is provided edit the appropriate /etc/pam.d/ configuration file and add or modify the pam_unix.so lines to include the sha512 option: password required pam_unix.so sha512

プロパティ

オペレーティングシステム: すべて
タグ: authcontainer-optimized-oscos
参照: CIS Google Container-Optimized OS Benchmark v1.2.0 - 5.2.3 Ensure password hashing algorithm is SHA-512

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 cos --level 2