TMA-COS-5.3.5

Ensure default user shell timeout is 900 seconds or less

低レベル 2手動レビューcos

説明

The default TMOUT determines the shell timeout for users. The TMOUT value is measured in seconds. Having no timeout value associated with a shell could allow an unauthorized user access to another user's shell session (e.g. user walks away from their computer and doesn't lock the screen). Setting a timeout value at least reduces the risk of this happening.

チェック方法

監査方法: 手動レビュー

この推奨事項は自動ではチェックできません。--include-manual を指定すると、スキャン結果にこの手順付きで一覧表示されます。

Run the following commands and verify all TMOUT lines returned are 900 or less and at least one exists in each file. # grep "^TMOUT" /etc/bash/bashrc TMOUT=900 # grep "^TMOUT" /etc/profile TMOUT=900

修正方法

修正方法: ガイダンスまたは IaC パッチ

Edit the /etc/bash/bashrc and /etc/profile files (and the appropriate files for any other shell supported on your system) and add or edit any umask parameters as follows: TMOUT=900

プロパティ

オペレーティングシステム: すべて
タグ: container-optimized-oscos
参照: CIS Google Container-Optimized OS Benchmark v1.2.0 - 5.3.5 Ensure default user shell timeout is 900 seconds or less