Apache HTTP Server
TMA-APACHE-7.8
Ensure Medium Strength SSL/TLS Ciphers Are Disabled
Opis
The SSLCipherSuite directive specifies which ciphers are allowed in the negotiation with the client. Disable the medium strength ciphers such as Triple DES (3DES) and IDEA by adding !3DES and !IDEA in the SSLCipherSuite directive. The effective SSLCipherSuite (last one at server level and in each virtual host) is expanded with the local openssl ciphers -v; no resulting suite may use 3DES or IDEA. Fails when no SSLCipherSuite is configured. 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.
Kako se proverava
Metod provere: Komanda ljuske
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=$0} END{if(g!="") print g}'; }; s=$(eff SSLCipherSuite | awk 'tolower($1)=="sslciphersuite"{v=(NF>=3 && ($2=="SSL"||$2=="TLSv1.3"))?$3:$2; if(NF>=3 && $2=="TLSv1.3") next; gsub(/"/,"",v); print v}'); [ -n "$s" ] || { echo noncompliant; exit 0; }; command -v openssl >/dev/null || exit 1; bad=0; while IFS= read -r v; do o=$(openssl ciphers -v "$v" 2>/dev/null) || { bad=1; continue; }; printf '%s\n' "$o" | awk '$5~/3DES|IDEA/' | grep -q . && bad=1; done <<< "$s"; [ "$bad" = 0 ] && echo compliant || echo noncompliant- Očekivani izlaz
compliant
Kako se ispravlja
Metod ispravke: Smernica ili zakrpa infrastrukture
Add !3DES:!IDEA to every SSLCipherSuite, e.g. SSLCipherSuite ALL:!EXP:!NULL:!LOW:!SSLv2:!RC4:!aNULL:!3DES:!IDEA Then run apachectl configtest and reload Apache.
Svojstva
- Operativni sistemi
- Bilo koji
- Oznake
- apachetls
- Referenca
- CIS Apache HTTP Server 2.4 Benchmark v2.4.0 - 7.8 Ensure Medium Strength SSL/TLS Ciphers Are Disabled
Proverite ovaj računar
Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.
tmaegis scan --target apache