Apache HTTP Server
TMA-APACHE-5.3
Ensure Options for Other Directories Are Minimized
Description
The Apache Options directive allows for specific configuration of options, including execution of CGI, following symbolic links, server side includes, and content negotiation. No Options directive inside a <Directory> block may enable Includes, IncludesNOEXEC or All. 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.
How it is checked
Audit method: Shell command
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 '/^<[Dd]irectory/{dd=1; next} /^<\/[Dd]irectory>/{dd=0; next} dd && tolower($1)=="options"{for(i=2;i<=NF;i++){t=tolower($i); if(t~/^\+?includes(noexec)?$/ || t~/^\+?all$/) bad=1}} END{print bad?"noncompliant":"compliant"}'- Expected output
compliant
How it is fixed
Fix method: Guidance or infrastructure patch
Remove Includes (and All) from Options in every <Directory> block; use only the options each directory needs. Then run apachectl configtest and reload Apache.
Properties
- Operating systems
- Any
- Tags
- apachefeatures
- Reference
- CIS Apache HTTP Server 2.4 Benchmark v2.4.0 - 5.3 Ensure Options for Other Directories Are Minimized
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
tmaegis scan --target apache --level 2