tc Server HORIZON must have the debug option turned off.

From VMware vRealize Automation 7.x tc Server Security Technical Implementation Guide

Associated with: CCI-001312

SV-100753r1_rule tc Server HORIZON must have the debug option turned off.

Vulnerability discussion

Information needed by an attacker to begin looking for possible vulnerabilities in a web server includes any information about the web server and plug-ins or modules being used. When debugging or trace information is enabled in a production web server, information about the web server, such as web server type, version, patches installed, plug-ins and modules installed, type of code being used by the hosted application, and any backends being used for data storage may be displayed. Since this information may be placed in logs and general messages during normal operation of the web server, an attacker does not need to cause an error condition to gain this information.As a Tomcat derivative, tc Server can be configured to set the debugging level. By setting the debugging level to zero (0), no debugging information will be provided to a malicious user. This provides a layer of defense to vRA.

Check content

At the command prompt, execute the following command: grep -En -A 2 -B 1 'debug' /opt/vmware/horizon/workspace/conf/web.xml If all instances of the debug parameter are not set to "0", this is a finding.

Fix text

Navigate to and open /opt/vmware/horizon/workspace/conf/web.xml. Navigate to all nodes that are not set to "0". Set the to "0" in all debug nodes. Note: The debug setting should look like the below: debug 0

Pro Tips

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You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.