VCST-67-000025 - The Security Token Service must not enable support for TRACE requests.

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Information

'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 Security Token Service will expose information that would be useful to perform a more targeted attack. The Security Token Service provides the 'allowTrace' parameter as a means to disable responding to Trace requests.

Solution

Navigate to and open /usr/lib/vmware-sso/vmware-sts/conf/server.xml.

Navigate to and locate:
'allowTrace='true''

Remove the 'allowTrace='true'' setting.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_6-7_STIG.zip