Citrix Windows Virtual Delivery Agent must be configured to prohibit or restrict the use of ports, as defined in the PPSM CAL and vulnerability assessments.
An XCCDF Rule
Description
<VulnDiscussion>To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems. Applications are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., email and web service); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the application must support the organizational requirements providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-234254r628798_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Some organizations consider port 80 to be a non-secure port regardless of the protocol. It is necessary to set the Delivery Controller and VDAs to use an approved port for registration traffic.
To set the registration port on the broker to an approved port (e.g., 8080) perform the following:
1. On each the Delivery Controller, open a command prompt.
2. Navigate to the Citrix install directory Program Files\Citrix\Broker\Service.
3. Run the command "BrokerService.exe -VDAPort 8080" to set the registration port to 8080. Replace 8080 with an approved port in the organization.