TMA-TOMCAT-10.3

Restrict manager application

AltaNivel 2Automatizadatomcat

Descripción

Limit access to the manager application to only those with a justified need. Limiting access to the least privilege will ensure only those people with a justified need will have access to a resource. The manager application should be limited to only administrators. When the manager application is deployed, its context (conf/Catalina/localhost/manager.xml or webapps/manager/META-INF/context.xml) must contain a RemoteAddrValve/RemoteCIDRValve with an allow list. Compliant when manager is not deployed. 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. CIS marks this recommendation Manual; the automated check implements its audit procedure.

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)}' "$1" | tr '\n\t\r' '   ' | tr '<' '\n'; }; [ -e "$B/webapps/manager" ] || [ -e "$B/conf/Catalina/localhost/manager.xml" ] || { echo compliant; exit 0; }; { x "$B/conf/Catalina/localhost/manager.xml"; x "$B/webapps/manager/META-INF/context.xml"; } 2>/dev/null | grep -E '^Valve[[:space:]].*Remote(Addr|CIDR)Valve' | grep -Eq 'allow[[:space:]]*=' && echo compliant || echo noncompliant

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Add <Valve className="org.apache.catalina.valves.RemoteAddrValve" allow="127\.0\.0\.1"/> to the manager context descriptor. Restart Tomcat afterwards.

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: tomcataccess-control
Referencia: CIS Apache Tomcat 10.1 Benchmark v1.0.0 - 10.3 Restrict manager application

Verificar este host

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

shell

tmaegis scan --target tomcat --level 2