DISA STIGS Viewer

HTTP status code must be logged.

Overview

Finding ID Version Rule ID IA Controls Severity
V-222941 TCAT-AS-000260 SV-222941r960897_rule   Low
Description
The access logfile format is defined within a Valve that implements the org.apache.catalina.valves.AccessLogValve interface within the /opt/tomcat/server.xml configuration file: The %s pattern code is included in the pattern element and logs the server response code associated with the event e.g. 200 OK or 400 Bad Request. Including the status pattern in the log configuration provides useful server response information about the event which is critical for troubleshooting and forensic investigations.
STIG Date
Apache Tomcat Application Server 9 Security Technical Implementation Guide 2025-02-11

Details

Check Text (C-24613r426267_chk)
As an elevated user on the Tomcat server:

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

Review all "Valve" elements.

If the pattern= statement does not include %s, this is a finding.

EXAMPLE:
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="false">
...
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log" suffix=".txt"
pattern="%h %l %t %u &quot;%r&quot; %s %b" />
...
</Host>
Fix Text (F-24602r426268_fix)
As a privileged user on the Tomcat server:

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

Modify the <Valve> element(s) nested within the <Host> element(s).

Change the AccessLogValve setting to include %s in the pattern= statement.

EXAMPLE:
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="false">
...
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log" suffix=".txt"
pattern="%h %l %t %u &quot;%r&quot; %s %b" />
...
</Host>

Restart the Tomcat server:
sudo systemctl restart tomcat
sudo systemctl daemon-reload