The Security Token Service must not enable support for TRACE requests.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-256769	SRG-APP-000266-WSR-000160	VCST-70-000025	SV-256769r889277_rule	2023-06-15	1

Description
"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 means to disable responding to TRACE requests.

Description

"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 means to disable responding to TRACE requests.

ℹ️ Check
At the command prompt, run the following command: # grep allowTrace /usr/lib/vmware-sso/vmware-sts/conf/server.xml If "allowTrace" is set to "true", this is a finding. If no line is returned, this is not a finding.

✔️ Fix
Navigate to and open: /usr/lib/vmware-sso/vmware-sts/conf/server.xml Locate and remove the 'allowTrace="true"' setting. Restart the service with the following command: # vmon-cli --restart sts