STIGQter: STIG Summary: VMware vSphere 7.0 vCenter Appliance UI Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 26 Jul 2023:

vSphere UI must limit the maximum size of a POST request.

DISA Rule

SV-256780r889339_rule

Vulnerability Number

V-256780

Group Title

SRG-APP-000001-WSR-000001

Rule Version

VCUI-70-000003

Severity

CAT II

CCI(s)

• CCI-000054 - Limit the number of concurrent sessions for each organization-defined account and/or account type to an organization-defined number.

Weight

10

Fix Recommendation

Navigate to and open:

/usr/lib/vmware-vsphere-ui/server/conf/server.xml

Navigate to each of the <Connector> nodes.

Remove any configuration for "maxPostSize".

Restart the service with the following command:

# vmon-cli --restart vsphere-ui

Check Contents

At the command prompt, run the following command:

# xmllint --xpath '/Server/Service/Connector[@port="${http.port}"]/@maxPostSize' /usr/lib/vmware-vsphere-ui/server/conf/server.xml

Expected result:

XPath set is empty

If the output does not match the expected result, this is a finding.

Vulnerability Number

V-256780

Documentable

False

Rule Version

VCUI-70-000003

Severity Override Guidance

At the command prompt, run the following command:

# xmllint --xpath '/Server/Service/Connector[@port="${http.port}"]/@maxPostSize' /usr/lib/vmware-vsphere-ui/server/conf/server.xml

Expected result:

XPath set is empty

If the output does not match the expected result, this is a finding.

Check Content Reference

M

Target Key

5528