Check: VCST-67-000020
VMware vSphere 6.7 STS Tomcat STIG:
VCST-67-000020
(in versions v1 r3 through v1 r2)
Title
The Security Token Service must set "URIEncoding" to UTF-8. (Cat II impact)
Discussion
Invalid user input occurs when a user inserts data or characters into a hosted application's data entry field and the hosted application is unprepared to process that data. This results in unanticipated application behavior, potentially leading to an application compromise. Invalid user input is one of the primary methods employed when attempting to compromise an application. An attacker can also enter Unicode characters into hosted applications in an effort to break out of the document home or root home directory or bypass security checks. The Security Token Service must be configured to use a consistent character set via the "URIEncoding" attribute on the Connector nodes.
Check Content
Connect to the PSC, whether external or embedded. At the command prompt, execute the following command: # xmllint --format /usr/lib/vmware-sso/vmware-sts/conf/server.xml | sed '2 s/xmlns=".*"//g' | xmllint --xpath '/Server/Service/Connector[@port="${bio-custom.http.port}"]/@URIEncoding' - Expected result: URIEncoding="UTF-8" If the output does not match the expected result, this is a finding.
Fix Text
Connect to the PSC, whether external or embedded. Navigate to and open /usr/lib/vmware-sso/vmware-sts/conf/server.xml. Navigate to each of the <Connector> nodes. Configure each <Connector> node with the value 'URIEncoding="UTF-8"'.
Additional Identifiers
Rule ID: SV-239671r879652_rule
Vulnerability ID: V-239671
Group Title: SRG-APP-000251-WSR-000157
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001310 |
The information system checks the validity of organization-defined inputs. |
Controls
Number | Title |
---|---|
SI-10 |
Information Input Validation |