Ensure rsh server is not enabled

中レベル 1自動linux

説明

The Berkeley rsh-server ( rsh , rlogin , rexec ) package contains legacy services that exchange credentials in clear-text.

チェック方法

監査方法: シェルコマンド

shell

alt0() { command -v systemctl >/dev/null 2>&1 || { echo "step1: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled rsh.socket' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step1: missing disabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step2: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl status rsh.socket' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Active: inactive (dead)' || { echo step2: missing 'Active: inactive (dead)'; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step3: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled rlogin.socket' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step3: missing disabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step4: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl status rlogin.socket' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Active: inactive (dead)' || { echo step4: missing 'Active: inactive (dead)'; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step5: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled rexec.socket' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step5: missing disabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step6: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl status rexec.socket' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Active: inactive (dead)' || { echo step6: missing 'Active: inactive (dead)'; return 1; }; }; if alt0; then echo compliant; fi

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

Run the following commands to disable rsh , rlogin , and rexec : # systemctl disable rsh.socket # systemctl disable rlogin.socket # systemctl disable rexec.socket # systemctl stop rsh.socket # systemctl stop rlogin.socket # systemctl stop rexec.socket

プロパティ

オペレーティングシステム: alinux-2
タグ: cis-convertedlinux
参照: CIS Aliyun Linux 2 Benchmark v1.0.0 ARCHIVE - 2.1.17

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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 linux