vSphere UI must protect cookies from XSS.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-239685	VCUI-67-000004	SV-239685r679161_rule		Medium

Description
Cookies are a common way to save session state over the HTTP(S) protocol. If an attacker can compromise session data stored in a cookie, they are better able to launch an attack against the server and its applications. When a cookie is tagged with the "HttpOnly" flag, it tells the browser that this particular cookie should only be accessed by the originating server. Any attempt to access the cookie from client script is strictly forbidden. Satisfies: SRG-APP-000001-WSR-000002, SRG-APP-000439-WSR-000154

Description

Cookies are a common way to save session state over the HTTP(S) protocol. If an attacker can compromise session data stored in a cookie, they are better able to launch an attack against the server and its applications. When a cookie is tagged with the "HttpOnly" flag, it tells the browser that this particular cookie should only be accessed by the originating server. Any attempt to access the cookie from client script is strictly forbidden. Satisfies: SRG-APP-000001-WSR-000002, SRG-APP-000439-WSR-000154

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

Details

Check Text ( C-42918r679159_chk )
At the command prompt, execute the following command: # xmllint --format /usr/lib/vmware-vsphere-ui/server/conf/context.xml \| xmllint --xpath '/Context/@useHttpOnly' - Expected result: useHttpOnly="true" If the output does not match the expected result, this is a finding.

Fix Text (F-42877r679160_fix)
Navigate to and open /usr/lib/vmware-vsphere-ui/server/conf/context.xml. Add the following configuration to the node: useHttpOnly="true" Example: