Documentation - V-251022

Title

The Sentry must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.

Description

<VulnDiscussion>In order 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. ALGs 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 operat...

Fix Text (Documentation Requirement)

Disable ports, protocols, and/or services not required for Sentry operation. 1. Log in to the Standalone Sentry System Manager. 2. Go to Security >> Access Control Lists >> ACLs. 3. Check all the ACLs to determine if the service restricted has an ACL already available. If it does not, click "Add". 4. In the "Name" field, enter a name to identify the ACL. 5. In the "Description" field, enter text to clarify the purpose of the ACL. 6. Click "Save". 7. Select the new ACL created and click it, which should open a "Modify ACL" dialog box. 8. Click "Add" to add an access control entry (ACE) to the ACL. Each ACE consists of a combination of the network hosts and services configured for use in ACLs. 9. Use the following guidelines to complete the form: Source Network Destination Network Service ...