HAProxy must not be started with the debug switch.

From VMW vRealize Automation 7.x HA Proxy Security Technical Implementation Guide

Associated with: CCI-001312

SV-99829r1_rule HAProxy must not be started with the debug switch.

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.

Check content

At the command prompt, execute the following command: ps aux | grep '[h]aproxy' | grep '\s\-d\s' If the command returns any value, this is a finding.

Fix text

Restart the HAProxy without the debug command line argument, which is "-d".

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

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