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The amount of idle time required before suspending a session must be properly set.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-1174 | WN12-SO-000031 | SV-52878r1_rule | ECSC-1 | Low |
| Description |
|---|
| Open sessions can increase the avenues of attack on a system. This setting is used to control when a computer disconnects an inactive SMB session. If client activity resumes, the session is automatically reestablished. This protects critical and sensitive network data from exposure to unauthorized personnel with physical access to the computer. |
| STIG | Date |
|---|---|
| Windows Server 2012 Domain Controller Security Technical Implementation Guide | 2014-01-07 |
Details
| Check Text ( C-47195r2_chk ) |
|---|
| If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: AutoDisconnect Value Type: REG_DWORD Value: 15 (or less) |
| Fix Text (F-45804r1_fix) |
|---|
| Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network server: Amount of idle time required before suspending a session" to "15" minutes or less. |