cis-tomcat8-v110-4-9

name	cis-tomcat8-v110-4.9
description	Restrict access to Tomcat catalina.policy (Scored)
category	cis-tomcat
version	1.0.0
author	cyberstrike-official
tags	["cis","tomcat","linux","java","file-permissions","catalina-policy"]
cis_id	4.9
cis_benchmark	CIS Apache Tomcat 8 Benchmark v1.1.0
tech_stack	["linux","tomcat","java"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

Restrict access to Tomcat catalina.policy (Scored)

Description

The catalina.policy file is used to configure security policies for Tomcat. It is recommended that access to this file has the proper permissions to properly protect from unauthorized changes.

Rationale

Restricting access to this file will prevent local users from maliciously or inadvertently altering Tomcat's security policy.

Audit Procedure

Perform the following to determine if the ownership and permissions on $CATALINA_HOME/conf/catalina.policy are securely configured.

# cd $CATALINA_HOME/conf/
# find catalina.policy -follow -maxdepth 0 \( -perm /o+rwx,g+rwx,u+x -o ! -user tomcat_admin -o ! -group tomcat \) -ls

The above command should not produce any output.

Remediation

Perform the following to restrict access to $CATALINA_HOME/conf/catalina.policy.

1. Set the owner and group owner of the contents of $CATALINA_HOME/conf/catalina.policy to tomcat_admin:tomcat.

# chown tomcat_admin:tomcat $CATALINA_HOME/conf/catalina.policy

2. Set the permissions of the $CATALINA_HOME/conf/catalina.policy file to 600.

# chmod 600 $CATALINA_HOME/conf/catalina.policy

Default Value

The default permissions of catalina.policy are 600.

References

1. https://tomcat.apache.org/tomcat-8.0-doc/security-howto.html
2. https://tomcat.apache.org/tomcat-8.5-doc/security-howto.html

CIS Controls

v7:

• 14.6 Protect Information through Access Control Lists
  • Protect all information stored on systems with file system, network share, claims, application, or database specific access control lists. These controls will enforce the principle that only authorized individuals should have access to the information based on their need to access the information as a part of their responsibilities.

Profile Applicability