Title

Applications providing remote connectivity must prevent remote devices that have established a non-remote connection with the system from communicating outside of the communications path with resources in external networks. (Cat II impact)

Discussion

This control enhancement is implemented within the remote device (e.g., notebook/laptop computer) via configuration settings that are not configurable by the user of that device. An example of a non-remote communications path from a remote device is a virtual private network. When a non-remote connection is established using a virtual private network, the configuration settings prevent split-tunneling. Split-tunneling might otherwise be used by remote users to communicate with the information system as an extension of that system and to communicate with local resources such as, a printer or file server. Since the remote device, when connected by a non-remote connection, becomes an extension of the information system, allowing dual communications paths such as split-tunneling would be, in effect, allowing unauthorized external connections into the system. Rationale for non-applicability: Mobile applications that support remote access are not within the scope of this SRG.

Check Content

This requirement is NA for the MAPP SRG.

Fix Text

The requirement is NA. No fix is required.

Additional Identifiers

Rule ID: SV-46975r1_rule

Vulnerability ID: V-35688

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.