TMA-APACHE-3.2
Ensure the Apache User Account Has an Invalid Shell
MediaNivel 1Automatizadaapache
Descripción
The apache account must not be used as a regular login account, and should be assigned an invalid or nologin shell to ensure that the account cannot be used to login. The account named by the User directive must have /sbin/nologin (or /dev/null) as its login shell. 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.
Cómo se verifica
Método de auditoría: Comando de 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; ev(){ case $1 in '${'*'}') local n=${1#??}; n=${n%?}; local v; v=$(sed -n "s/^[[:space:]]*export[[:space:]]*$n=//p" "${APACHE_ENVVARS:-/etc/apache2/envvars}" 2>/dev/null | tail -n1 | tr -d "\"'"); printf '%s\n' "${v:-$1}";; *) printf '%s\n' "$1";; esac; }; u=$(ev "$(printf '%s\n' "$cfg" | awk 'tolower($1)=="user"{v=$2} END{print v}')"); [ -n "$u" ] && [ "${u#\$}" = "$u" ] || { echo noncompliant; exit 0; }; sh=$(getent passwd "$u" | cut -d: -f7) || exit 1; case "$sh" in */nologin|/dev/null) echo compliant;; *) echo noncompliant;; esac- Salida esperada
compliant
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
chsh -s /sbin/nologin <apache user> (use /usr/sbin/nologin on Debian/Ubuntu).
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- apacheaccounts
- Referencia
- CIS Apache HTTP Server 2.4 Benchmark v2.4.0 - 3.2 Ensure the Apache User Account Has an Invalid Shell
Verificar este host
Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.
shell
tmaegis scan --target apache