Check: 5.047
Windows Vista STIG:
5.047
(in versions v6 r42 through v6 r41)
Title
Terminal Services idle session time limit does not meet the requirement. (Cat II impact)
Discussion
This setting controls how long a session may be idle before it is automatically disconnected from the server. Users should disconnect if they plan on being away from their terminals for extended periods of time. Idle sessions should be disconnected after 15 minutes.
Check Content
If the following registry value does not exist or its value is set to 0 or greater than 15 minutes, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MaxIdleTime Type: REG_DWORD Value: 0x000dbba0 (900000) or less but not 0
Fix Text
Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Terminal Server -> Session Time Limits “Set time limit for active but idle Terminal Services sessions” to “Enabled”, and the “Idle session limit” set to 15 minutes or less, excluding 0 which equates to “Never”.
Additional Identifiers
Rule ID: SV-16614r1_rule
Vulnerability ID: V-3458
Group Title: TS/RDS - Time Limit for Idle Session
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-001133 |
The information system terminates the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity. |
| CCI-002361 |
The information system automatically terminates a user session after organization-defined conditions or trigger events requiring session disconnect. |