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 <Connector> node, remove the "maxPostSize" key/value pair. Restart the service with the following command: # vmon-cli --restart lookupsvc |