Multifactor certificate-based tokens (CAC) must be used when accessing the management interface.

Password authentication does not provide sufficient security control when accessing a management interface. DOD has specified that a CAC will be used when authenticating and passwords will only be used when CAC authentication is not a plausible solution. Tomcat provides the ability to do certificate based authentication and client authentication; therefore, the Tomcat server must be configured to use CAC. Satisfies: SRG-APP-000391-AS-000239, SRG-APP-000392-AS-000240, SRG-APP-000402-AS-000247, SRG-APP-000403-AS-000248

If the manager application has been deleted from the Tomcat server, this is not a finding. From the Tomcat server as a privileged user, issue the following command: sudo grep -i auth-method $CATALINA_BASE/webapps/manager/WEB-INF/web.xml If the <Auth-Method> for the web manager application is not set to CLIENT-CERT, this is a finding.

From the Tomcat server as a privileged user, edit the $CATALINA_BASE/webapps/manager/WEB-INF/web.xml file and modify the auth-method for the manager application security constraint. sudo nano $CATALINA_BASE/webapps/manager/WEB-INF/web.xml Locate <auth-method> contained within the <login-config> section, modify <auth-method> to specify CLIENT-CERT. EXAMPLE: <auth-method>CLIENT-CERT</auth-method> In addition, the connector used for accessing the manager application must be configured to require client authentication by setting clientAuth="true" and the manager application roles must be configured in the LDAP server. Restart the Tomcat server: sudo systemctl restart tomcat