ErrorReportValve showServerInfo must be set to false.
An XCCDF Rule
Description
<VulnDiscussion>The Error Report Valve is a simple error handler for HTTP status codes that will generate and return HTML error pages. It can also be configured to return pre-defined static HTML pages for specific status codes and/or exception types. Disabling showServerInfo will only return the HTTP status code and remove all CSS from the default non-error related HTTP responses.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-222975r961167_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
As a privileged user on the Tomcat server:
Edit the $CATALINA_BASE/conf/server.xml file.
Create or modify an ErrorReportValve <Valve> element nested beneath each <Host> element.