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ErrorReportValve showServerInfo must be set to false.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-222975 | TCAT-AS-000920 | SV-222975r879655_rule | Medium |
| Description |
|---|
| 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. |
| STIG | Date |
|---|---|
| Apache Tomcat Application Server 9 Security Technical Implementation Guide | 2023-06-05 |
Details
| Check Text ( C-24647r426369_chk ) |
|---|
| As an elevated user on the Tomcat server run the following command: sudo grep -i ErrorReportValve $CATALINA_BASE/conf/server.xml file. If the ErrorReportValve element is not defined and showServerInfo set to "false", this is a finding. EXAMPLE: ... ... |
| Fix Text (F-24636r426370_fix) |
|---|
| As a privileged user on the Tomcat server: Edit the $CATALINA_BASE/conf/server.xml file. Create or modify an ErrorReportValve EXAMPLE: ... ... Restart the Tomcat server: sudo systemctl restart tomcat sudo systemctl daemon-reload |