Ensure Access to .ht* Files Is Restricted

中レベル 1自動apache

説明

Restrict access to any files beginning with .ht using the FilesMatch directive. The default name for access filename which allows files in web directories to override the Apache configuration is .htaccess. The usage of access files should not be allowed, but as a defense in depth a FilesMatch directive is recommended to prevent web clients from viewing those files in case they are created. A <FilesMatch "^\.ht"> block containing Require all denied (or Deny from all) must exist. 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.

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 '/^$/d'); shopt -u nocasematch; printf '%s\n' "$cfg" | awk '{l=tolower($0)} l~/^<filesmatch[[:space:]]/ && index(l,"^\\.ht"){b=1; next} b && l~/^<\/filesmatch>/{b=0; next} b && (l~/^require[[:space:]]+all[[:space:]]+denied/ || l~/^deny[[:space:]]+from[[:space:]]+all/){ok=1} END{print ok?"compliant":"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

Add at server level: <FilesMatch "^\.ht"> Require all denied </FilesMatch> Then run apachectl configtest and reload Apache.

プロパティ

オペレーティングシステム: すべて
タグ: apachefeatures
参照: CIS Apache HTTP Server 2.4 Benchmark v2.4.0 - 5.10 Ensure Access to .ht* Files Is Restricted

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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