TMA-TOMCAT-4.1

Restrict access to $CATALINA_HOME

MediaNivel 1Automatizadatomcat

Descripción

$CATALINA_HOME is the environment variable which holds the path to the root Tomcat directory. It is important to protect access to this in order to protect the Tomcat binaries and libraries from unauthorized modification. It is recommended that the ownership of $CATALINA_HOME be tomcat_admin:tomcat. $CATALINA_HOME must not match -perm /o+rwx,g=w and must be owned by $TOMCAT_OWNER:$TOMCAT_GROUP; expects 0 findings. Reads $CATALINA_BASE (default /opt/tomcat) and $CATALINA_HOME (default: $CATALINA_BASE); set them for packaged installs (e.g. CATALINA_BASE=/var/lib/tomcat10, CATALINA_HOME=/usr/share/tomcat10). XML comments are ignored. The expected owner/group are tomcat_admin:tomcat as in the benchmark; override with TOMCAT_OWNER / TOMCAT_GROUP.

Cómo se verifica

Método de auditoría: Comando de shell

shell

B=${CATALINA_BASE:-/opt/tomcat}; H=${CATALINA_HOME:-$B}; O=${TOMCAT_OWNER:-tomcat_admin}; G=${TOMCAT_GROUP:-tomcat}; x(){ [ -r "$1" ] || return 1; awk 'BEGIN{RS="<!--"} NR==1{print;next} {i=index($0,"-->"); if(i) print substr($0,i+3)}' "$1" | tr '\n\t\r' '   ' | tr '<' '\n'; }; p="$H"; [ -e "$p" ] || exit 1; find -L "$p" -maxdepth 0 \( -perm /o+rwx,g=w -o ! -user "$O" -o ! -group "$G" \) -print 2>/dev/null | wc -l

Salida esperada: 0

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

chown tomcat_admin:tomcat $CATALINA_HOME && chmod g-w,o-rwx $CATALINA_HOME. Restart Tomcat afterwards.

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: tomcatpermissions
Referencia: CIS Apache Tomcat 10.1 Benchmark v1.0.0 - 4.1 Restrict access to $CATALINA_HOME

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target tomcat