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V-222952

CAT II (Medium)

Unapproved connectors must be disabled.

Rule ID

SV-222952r1135497_rule

STIG

Apache Tomcat Application Server 9 Security Technical Implementation Guide

Version

V3R4

CCIs

CCI-000381

Discussion

Connectors are how Tomcat receives requests, passes them to hosted web applications, and then sends back the results to the requestor. Tomcat provides HTTP and Apache JServ Protocol (AJP) connectors and makes these protocols available via configured network ports. Unapproved connectors provide open network connections to either of these protocols and put the system at risk.

Check Content

Review SSP for list of approved connectors and associated TCP/IP ports. Verify only approved connectors are present. Execute the following command on the Tomcat server to find configured Connectors:

sudo cat $CATALINA_BASE/conf/server.xml | grep -i "Connector"

Review results and verify all connectors and their associated network ports are approved in the SSP.

If connectors are found but are not approved in the SSP, this is a finding.

Fix Text

Obtain ISSO approvals for the configured connectors and document in the SSP.

Alternatively, edit the $CATALINA_BASE/conf/server.xml file, remove any unapproved connectors, and restart Tomcat: 
sudo systemctl restart tomcat
sudo systemctl daemon-reload