Details

The DefaultServlet serves static resources as well as directory listings. It is declared globally in $CATALINA_BASE/conf/web.xml and by default is configured with the directory ‘listings’ parameter set to disabled. If no welcome file is present and the ‘listings’ setting is enabled, a directory listing is shown. Directory listings must be disabled.

Solution

From the Tomcat server as a privileged user:

Edit the $CATALINA_BASE/conf/web.xml file.

Examine the elements within the element, if the ‘listings’element is ‘true’ change the ‘listings’ to read ‘false’.

sudo systemctl restart tomcat
sudo systemctl daemon-reload

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Apache_Tomcat_Application_Server_9_V2R3_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.

References

• 800-53|CM-7a.
• CAT|III
• CCI|CCI-000381
• Rule-ID|SV-222954r615938_rule
• STIG-ID|TCAT-AS-000520
• STIG-Legacy|SV-111433
• STIG-Legacy|V-102491
• Vuln-ID|V-222954

Source

• Tenable.com/audits