STIGQter STIGQter: STIG Summary: Microsoft Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide Version: 3 Release: 2 Benchmark Date: 04 May 2021:

IPSec Exemptions must be limited.

DISA Rule

SV-225483r569185_rule

Vulnerability Number

V-225483

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

WN12-SO-000042

Severity

CAT III

CCI(s)

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (NoDefaultExempt) Configure IPSec exemptions for various types of network traffic" to "Only ISAKMP is exempt (recommended for Windows Server 2003)".

(See "Updating the Windows Security Options File" in the STIG Overview document if MSS settings are not visible in the system's policy tools.)

Check Contents

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\IPSEC\

Value Name: NoDefaultExempt

Value Type: REG_DWORD
Value: 3

Vulnerability Number

V-225483

Documentable

False

Rule Version

WN12-SO-000042

Severity Override Guidance

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\IPSEC\

Value Name: NoDefaultExempt

Value Type: REG_DWORD
Value: 3

Check Content Reference

M

Target Key

4214

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