The Security Token Service must set the secure flag for cookies.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-239681	VCST-67-000030	SV-239681r679115_rule		Medium

Description
The secure flag is an option that can be set by the application server when sending a new cookie to the user within an HTTP Response. The purpose of the secure flag is to prevent cookies from being observed by unauthorized parties due to the transmission of the cookie in clear text. By setting the secure flag, the browser will prevent the transmission of a cookie over an unencrypted channel. The Security Token Service is configured to only be accessible over a TLS tunnel, but this cookie flag is still a recommended best practice.

Description

The secure flag is an option that can be set by the application server when sending a new cookie to the user within an HTTP Response. The purpose of the secure flag is to prevent cookies from being observed by unauthorized parties due to the transmission of the cookie in clear text. By setting the secure flag, the browser will prevent the transmission of a cookie over an unencrypted channel. The Security Token Service is configured to only be accessible over a TLS tunnel, but this cookie flag is still a recommended best practice.

STIG	Date
VMware vSphere 6.7 STS Tomcat Security Technical Implementation Guide	2021-04-15

Details

Check Text ( C-42914r679113_chk )
At the command prompt, execute the following command: # xmllint --format /usr/lib/vmware-sso/vmware-sts/conf/web.xml \| sed '2 s/xmlns=".*"//g' \| xmllint --xpath '/web-app/session-config/cookie-config/secure' - Expected result: true If the output of the command does not match the expected result, this is a finding.

Fix Text (F-42873r679114_fix)
Navigate to and open /usr/lib/vmware-sso/vmware-sts/conf/web.xml. Navigate to the /// node and configure it as follows: true true