cis-tomcat10-v110-4-15

name	cis-tomcat10-v110-4.15
description	Restrict access to jaspic-providers.xml
category	cis-tomcat
version	1.1.0
author	cyberstrike-official
tags	["cis","tomcat","linux","java","configuration","file-permissions","jaspic"]
cis_id	4.15
cis_benchmark	CIS Apache Tomcat 10 Benchmark v1.1.0
tech_stack	["linux","tomcat","java"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

4.15 Restrict access to jaspic-providers.xml (Automated)

Profile Applicability

• Level 1

Description

Tomcat implements JASPIC 1.1 Maintenance Release B (JSR 196). The implementation is primarily intended to enable the integration of 3rd party JASPIC authentication implementations with Tomcat.

JASPIC may be configured dynamically by an application or statically via the $CATALINA_BASE/conf/jaspic-providers.xml configuration file. It is recommended that access to this file 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/jaspic-providers.xml are securely configured.

# cd $CATALINA_HOME/conf/
# find jaspic-providers.xml -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/jaspic-providers.xml.

1. Set the ownership of the $CATALINA_HOME/conf/jaspic-providers.xml file to tomcat_admin:tomcat.

# chown tomcat_admin:tomcat $CATALINA_HOME/conf/jaspic-providers.xml

2. Set the permissions for the $CATALINA_HOME/conf/jaspic-providers.xml file to 600.

# chmod 600 $CATALINA_HOME/conf/jaspic-providers.xml

Default Value

The default permissions of jaspic-providers.xml are 600.

References

1. https://tomcat.apache.org/tomcat-9.0-doc/config/jaspic.html

CIS Controls

Controls Version: v8

Control: 3.3 Configure Data Access Control Lists

Configure data access control lists based on a user's need to know. Apply data access control lists, also known as access permissions, to local and remote file systems, databases, and applications.

IG 1: • • •