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TMA-APACHE-7.4

Ensure the TLSv1.0 and TLSv1.1 Protocols are Disabled

ÉlevéeNiveau 1Automatiséeapache

Description

The TLSv1.0 and TLSv1.1 protocols should be disabled via the SSLProtocol directive. The TLSv1.0 protocol is vulnerable to information disclosure and both protocols lack support for modern cryptographic algorithms including authenticated encryption. The only SSL/TLS protocols that should be allowed is TLSv1.2 along with the newer TLSv1.3 protocol. The effective SSLProtocol (last one at server level and in each virtual host) must resolve to TLSv1.2 and/or TLSv1.3 only (e.g. SSLProtocol +TLSv1.2 +TLSv1.3, or all -SSLv3 -TLSv1 -TLSv1.1), and at least one 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. CIS marks this recommendation Manual; the automated check implements its audit procedure.

Méthode de vérification

Méthode d'audit: Commande shell

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 '/^$/d'); shopt -u nocasematch; eff(){ printf '%s\n' "$cfg" | awk -v k="$1" '{l=tolower($0)} l~/^<virtualhost/{vh=1; next} l~/^<\/virtualhost>/{if(v!="") print v; v=""; vh=0; next} tolower($1)==tolower(k){if(vh) v=$0; else g=$0} END{if(g!="") print g}'; }; eff SSLProtocol | awk 'tolower($1)=="sslprotocol"{n++; delete s; for(i=2;i<=NF;i++){t=$i; p=substr(t,1,1); if(p=="+"||p=="-") t=substr(t,2); else delete s; t=tolower(t); if(t=="all"){split("sslv3 tlsv1 tlsv1.1 tlsv1.2 tlsv1.3",z," "); for(j in z) if(p=="-") delete s[z[j]]; else s[z[j]]=1} else if(p=="-") delete s[t]; else s[t]=1} k=0; for(x in s){k++; if(x!="tlsv1.2" && x!="tlsv1.3") bad=1} if(k==0) bad=1} END{print (n>0&&!bad)?"compliant":"noncompliant"}'
Sortie attendue
compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Set SSLProtocol +TLSv1.2 +TLSv1.3 (or +TLSv1.2) at server level and in every TLS virtual host. Then run apachectl configtest and reload Apache.

Propriétés

Systèmes d'exploitation
Tous
Étiquettes
apachetls
Référence
CIS Apache HTTP Server 2.4 Benchmark v2.4.0 - 7.4 Ensure the TLSv1.0 and TLSv1.1 Protocols are Disabled

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell
tmaegis scan --target apache