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All mobile device VPN clients must timeout after a set period of inactivity.


Finding ID Version Rule ID IA Controls Severity
V-32696 WIR-MOS-iOS-034-05 SV-43042r1_rule ECWN-1 Medium
DoD data and the DoD network could be compromised if transmitted data is not secured with a compliant VPN. A VPN provides an open connection to the DoD network. If the VPN client does not timeout after the required period of inactivity, and a hacker is able to bypass the device password controls, they would have access to the DoD network.
Apple iOS6 Security Technical Implementation Guide 2014-10-07


Check Text ( C-41058r4_chk )
This check is not applicable if the installed VPN client is not used for remote access to DoD networks. Note: Use of a VPN to access DoD email on a mobile device is not required.
Interview the IAO and/or site wireless device administrator and inspect a sample (3-4) of site devices. Review VPN client specification sheets. Verify the VPN client is configured to timeout an inactive session after a set period of inactivity. The check procedures will vary depending on the VPN client used.

Mark as a finding if the VPN client is not configured to timeout after 4 hours.
Fix Text (F-36594r3_fix)
Configure the VPN client to timeout a session after 4 hours of inactivity.