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cis-tomcat7-v100-1.1

DevOps & Security
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Remove extraneous files and directories

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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/CIS_benchmarks/Server_Software/Apache_Tomcat/CIS_Apache_Tomcat_7_Benchmark_v1.0.0/cis-tomcat7-v100-1.1/SKILL.md

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CIS Apache Tomcat 7 - 1.1 Remove extraneous files and directories (Scored)

Profile Applicability

  • Level 2

Description

The installation may provide example applications, documentation, and other directories which may not serve a production use.

Rationale

Removing sample resources is a defense in depth measure that reduces potential exposures introduced by these resources.

Impact

Removal of example applications and documentation reduces available attack surface.

Audit Procedure

Perform the following to determine the existence of extraneous resources:

  1. List all files extraneous files. The following should yield no output:
$ ls -l $CATALINA_HOME/webapps/js-examples \
    $CATALINA_HOME/webapps/servlet-example \
    $CATALINA_HOME/webapps/webdav \
    $CATALINA_HOME/webapps/tomcat-docs \
    $CATALINA_HOME/webapps/balancer \
    $CATALINA_HOME/webapps/ROOT/admin \
    $CATALINA_HOME/webapps/examples \
    $CATALINA_HOME/server/webapps/host-manager \
    $CATALINA_HOME/server/webapps/manager \
    $CATALINA_HOME/conf/Catalina/localhost/host-manager.xml \
    $CATALINA_HOME/conf/Catalina/localhost/manager.xml

Remediation

Perform the following to remove extraneous resources:

  1. The following should yield no output:
$ rm -rf $CATALINA_HOME/webapps/js-examples \
    $CATALINA_HOME/webapps/servlet-example \
    $CATALINA_HOME/webapps/webdav \
    $CATALINA_HOME/webapps/tomcat-docs \
    $CATALINA_HOME/webapps/balancer \
    $CATALINA_HOME/bin/webapps/ROOT/admin \$CATALINA_HOME/webapps/examples

If the Manager application is not utilized, also remove the following resources:

$ rm -rf $CATALINA_HOME/server/webapps/host-manager \
    $CATALINA_HOME/server/webapps/manager \
    $CATALINA_HOME/conf/Catalina/localhost/host-manager.xml \
    $CATALINA_HOME/conf/Catalina/localhost/manager.xml

Default Value

Depending on your install method, default extraneous resources will vary.

References

  • CIS Apache Tomcat 7 Benchmark v1.0.0

CIS Controls

Version 7:

  • 18.9 Limit Use of Live Operating System to Those That Are Needed

Assessment Status

  • Scored
  • Profile: Level 2