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All wireless PDA client VPN authentication credential cache timeout must be set to 2 hours or less.


Finding ID Version Rule ID IA Controls Severity
V-32697 WIR-MOS-iOS-034-06 SV-43043r1_rule ECWN-1 Medium
DoD data could be compromised if transmitted data is not secured with a compliant VPN. User authentication credentials (CAC PIN) may be compromised if a hacker credential cache is not wiped on a periodic basis.
Apple iOS 5 Security Technical Implementation Guide (STIG) 2012-07-20


Check Text ( C-41059r2_chk )
This check is not applicable if the installed VPN client is not used for remote access to DoD networks. 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 inactive session timeout has been set to 2 hours or less.

Mark as a finding if the timeout period is not set as required.
Fix Text (F-36595r1_fix)
Configure the VPN client to timeout an inactive session of 2 hours or less.