Ensure sshd HostbasedAuthentication is disabled

高レベル 1自動aix

説明

The HostbasedAuthentication parameter specifies if authentication is allowed through trusted hosts via the user of .rhosts, or /etc/hosts.equiv, along with successful public key client host authentication. Host-based authentication is a method to authenticate users (rather than requiring password or key-based authentication method). Used at a system level by OpenSSH requires the file /etc/shosts.equiv to contain a list of so-called trusted hosts. Audit: evaluates the effective configuration from `sshd -T` (Match blocks must be reviewed separately).

チェック方法

監査方法: シェルコマンド

shell

command -v sshd >/dev/null 2>&1 || exit 1; out=$(sshd -T 2>/dev/null) || exit 1; r=compliant; for p in '^hostbasedauthentication[[:blank:]]+no$'; do printf '%s\n' "$out" | grep -Eiq -- "$p" || r="not matched: $p"; done; echo "$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

Edit the /etc/ssh/sshd_config file to set the parameter above any Match entries as follows: HostbasedAuthentication no Re-cycle the sshd daemon to pick up the configuration changes: stopsrc -s sshd startsrc -s sshd Note: First occurrence of a option takes precedence, Match set statements withstanding.

プロパティ

オペレーティングシステム: すべて
タグ: aixssh
参照: CIS IBM AIX 7 Benchmark v1.2.0 - 4.6.3.7 Ensure sshd HostbasedAuthentication is disabled

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 aix