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xpoweredBy attribute must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-222957 | TCAT-AS-000550 | SV-222957r615938_rule | Low |
| Description |
|---|
| Individual connectors can be configured to display the Tomcat server info to clients. This information can be used to identify Tomcat versions which can be useful to attackers for identifying vulnerable versions of Tomcat. Individual connectors must be checked for the xpoweredBy attribute to ensure they do not pass Tomcat server info to clients. |
| STIG | Date |
|---|---|
| Apache Tomcat Application Sever 9 Security Technical Implementation Guide | 2021-06-15 |
Details
| Check Text ( C-24629r426315_chk ) |
|---|
| From the Tomcat server run the following OS command: sudo cat $CATALINA_BASE/conf/server.xml |grep -i -C4 xpoweredby. If any connector elements contain xpoweredBy="true", this is a finding. |
| Fix Text (F-24618r426316_fix) |
|---|
| From the Tomcat server as a privileged user, edit the $CATALINA_BASE/conf/server.xml file. Examine each sudo systemctl restart tomcat sudo systemctl daemon-reload |