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TMA-APACHE-7.3

Ensure the Server's Private Key Is Protected

高レベル 1自動apache

説明

It is critical to protect the server's private key. The server's private key is encrypted by default as a means of protecting it. However, having it encrypted means that the passphrase is required each time the server is started up, and now it is necessary to protect the passphrase as well. The passphrase may be typed in when it is manually started up or provided by an automated program. Every SSLCertificateKeyFile (and any SSLCertificateFile that embeds a PRIVATE KEY) must be owned by root:root with mode 0400. Reads the main configuration (APACHE_CONF overrides; default /etc/apache2/apache2.conf, /etc/httpd/conf/httpd.conf or /usr/local/apache2/conf/httpd.conf) and every Include/IncludeOptional file. CIS marks this recommendation Manual; the automated check implements its audit procedure.

チェック方法

監査方法: シェルコマンド

shell
c=${APACHE_CONF:-}; if [ -z "$c" ]; then for f in /etc/apache2/apache2.conf /etc/httpd/conf/httpd.conf /usr/local/apache2/conf/httpd.conf /etc/apache2/httpd.conf; do [ -f "$f" ] && { c=$f; break; }; done; fi; [ -r "$c" ] || exit 1; R=$(awk 'tolower($1)=="serverroot"{v=$2; gsub(/"/,"",v); print v; exit}' "$c"); [ -n "$R" ] || R=$(dirname "$c"); shopt -s nocasematch; inc(){ local p g l; [ ${#FUNCNAME[@]} -lt 16 ] || return 0; p=$1; case $p in /*) ;; *) p=$R/$p;; esac; [ -d "$p" ] && p="$p/*"; for g in $p; do [ -f "$g" ] || continue; while IFS= read -r l || [ -n "$l" ]; do if [[ $l =~ ^[[:space:]]*include(optional)?[[:space:]]+\"?([^\"[:space:]]+) ]]; then inc "${BASH_REMATCH[2]}"; else printf '%s\n' "$l"; fi; done < "$g"; done; }; cfg=$(inc "$c" | sed -e 's/^[[:space:]]*//' -e '/^#/d' -e '/^$/d'); shopt -u nocasematch; bad=0; n=0; while read -r k f; do f=${f//\"/}; case $f in /*) ;; *) f=$R/$f;; esac; [ -e "$f" ] || continue; if [ "$k" = c ]; then grep -q 'PRIVATE KEY' "$f" 2>/dev/null || continue; fi; n=$((n+1)); o=$(stat -Lc '%U:%G' "$f"); [ "$o" = root:root ] && [ -z "$(find -L "$f" -perm /377)" ] || bad=1; done < <(printf '%s\n' "$cfg" | awk 'tolower($1)=="sslcertificatekeyfile"{print "k", $2} tolower($1)=="sslcertificatefile"{print "c", $2}'); [ "$bad" = 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

chown root:root <keyfile>; chmod 0400 <keyfile> for every SSLCertificateKeyFile.

プロパティ

オペレーティングシステム
すべて
タグ
apachetls
参照
CIS Apache HTTP Server 2.4 Benchmark v2.4.0 - 7.3 Ensure the Server's Private Key Is Protected

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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 apache