UCF STIG Viewer Logo

vSphere UI must not enable support for TRACE requests.


Finding ID Version Rule ID IA Controls Severity
V-256803 VCUI-70-000026 SV-256803r889408_rule Medium
"TRACE" is a technique for a user to request internal information about Tomcat. This is useful during product development but should not be enabled in production. Allowing an attacker to conduct a TRACE operation against the web service will expose information that would be useful to perform a more targeted attack. vSphere UI provides the "allowTrace" parameter as means to disable responding to TRACE requests.
VMware vSphere 7.0 vCenter Appliance UI Security Technical Implementation Guide 2023-06-15


Check Text ( C-60478r889406_chk )
At the command prompt, run the following command:

# grep allowTrace /usr/lib/vmware-vsphere-ui/server/conf/server.xml

If "allowTrace" is set to "true", this is a finding.

If no line is returned, this is not a finding.
Fix Text (F-60421r889407_fix)
Navigate to and open:


Navigate to and locate 'allowTrace="true"'.

Remove the 'allowTrace="true"' setting.

Restart the service with the following command:

# vmon-cli --restart vsphere-ui