LockOutRealms lockOutTime attribute must be set to 600 seconds (10 minutes) for admin users.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-222982	TCAT-AS-001040	SV-222982r615938_rule		Low

Description
A LockOutRealm adds the ability to specify a lockout time that prevents further attempts after multiple failed logins. Setting the lockOutTime attribute to 600 will lock out a user account for 10 minutes. Further authentication failures during the lock out time will cause the lock out timer to reset to zero, effectively extending the lockout time. Valid authentication attempts during the lockout period will not succeed but will also not reset the lockout time. LockOutRealm is an implementation of the Tomcat Realm interface that extends the CombinedRealm to provide user lock out functionality if there are too many failed authentication attempts in a given period of time. A LockOutRealm is created by wrapping around a standard realm such as a JNDI Directory Realm which connects Tomcat to an LDAP Directory. A Catalina container (Engine, Host, or Context) may contain no more than one Realm element (although this one Realm may itself contain multiple nested Realms). In addition, the Realm associated with an Engine or a Host is automatically inherited by lower-level containers unless the lower level container explicitly defines its own Realm. If no Realm is configured for the Engine, an instance of the Null Realm will be configured for the Engine automatically.

Description

A LockOutRealm adds the ability to specify a lockout time that prevents further attempts after multiple failed logins. Setting the lockOutTime attribute to 600 will lock out a user account for 10 minutes. Further authentication failures during the lock out time will cause the lock out timer to reset to zero, effectively extending the lockout time. Valid authentication attempts during the lockout period will not succeed but will also not reset the lockout time. LockOutRealm is an implementation of the Tomcat Realm interface that extends the CombinedRealm to provide user lock out functionality if there are too many failed authentication attempts in a given period of time. A LockOutRealm is created by wrapping around a standard realm such as a JNDI Directory Realm which connects Tomcat to an LDAP Directory. A Catalina container (Engine, Host, or Context) may contain no more than one Realm element (although this one Realm may itself contain multiple nested Realms). In addition, the Realm associated with an Engine or a Host is automatically inherited by lower-level containers unless the lower level container explicitly defines its own Realm. If no Realm is configured for the Engine, an instance of the Null Realm will be configured for the Engine automatically.

STIG	Date
Apache Tomcat Application Sever 9 Security Technical Implementation Guide	2020-12-11

Details

Check Text ( C-24654r426390_chk )
From the Tomcat server console, run the following command: sudo grep -i LockOutRealm $CATALINA_BASE/conf/server.xml. If there are no results or if the LockOutRealm lockOutTime setting is not configured to 600 (10 minutes), this is a finding.

Fix Text (F-24643r426391_fix)
From the Tomcat server console as a privileged user, edit the $CATALINA_BASE/conf/server.xml file. sudo nano $CATALINA_BASE/conf/server.xml file Locate or add the LockOutRealm element. Set lockOutTime="600" EXAMPLE: ...