TMAegis
More rules for apache

TMA-APACHE-5.1

Ensure Options for the OS Root Directory Are Restricted

MediumLevel 1Automatedapache

Description

The Apache Options directive allows for specific configuration of options, including execution of CGI, following symbolic links, server side includes, and content negotiation. The <Directory /> block must contain a single Options None. 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

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); $0=l} /^<directory[[:space:]]/{dd++; if(dd==1){x=$2; gsub(/[">]/,"",x); r=(x=="/"); if(r) f=1}; next} /^<\/directory>/{dd--; if(dd==0) r=0; next} r && $1=="options"{n++; if(NF==2 && $2=="none") ok++} END{print (f&&n==1&&ok==1)?"compliant":"noncompliant"}'
Expected output
compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Set Options None in the <Directory /> block. Then run apachectl configtest and reload Apache.

Properties

Operating systems
Any
Tags
apachefeatures
Reference
CIS Apache HTTP Server 2.4 Benchmark v2.4.0 - 5.1 Ensure Options for the OS Root Directory Are Restricted

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell
tmaegis scan --target apache