UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

Lookup Service must limit the maximum size of a POST request.


Overview

Finding ID Version Rule ID IA Controls Severity
V-256708 VCLU-70-000003 SV-256708r888715_rule Medium
Description
The "maxPostSize" value is the maximum size in bytes of the POST that will be handled by the container FORM URL parameter parsing. Limit its size to reduce exposure to a denial-of-service attack. If "maxPostSize" is not set, the default value of 2097152 (2MB) is used. Lookup Service is configured in its shipping state to not set a value for "maxPostSize".
STIG Date
VMware vSphere 7.0 vCenter Appliance Lookup Service Security Technical Implementation Guide 2023-06-15

Details

Check Text ( C-60383r888713_chk )
At the command prompt, run the following command:

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

Expected result:

XPath set is empty

If the output does not match the expected result, this is a finding.
Fix Text (F-60326r888714_fix)
Navigate to and open:

/usr/lib/vmware-lookupsvc/conf/server.xml

In the node, remove the "maxPostSize" key/value pair.

Restart the service with the following command:

# vmon-cli --restart lookupsvc