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Check: 3.104

Windows Vista STIG: 3.104 (in versions v6 r42 through v6 r41)

Title

The system is configured to detect and configure default gateway addresses. (Cat III impact)

Discussion

Enables or disables the Internet Router Discovery Protocol (IRDP) used to detect and configure Default Gateway addresses on the computer.

Check Content

Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “MSS: (PerformRouterDiscovery) Allow IRDP to detect and configure Default Gateway addresses (could lead to DoS)” is not set to “Disabled”, then this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Subkey: \System\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: PerformRouterDiscovery Value Type: REG_DWORD Value: 0

Fix Text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (PerformRouterDiscovery) Allow IRDP to detect and configure Default Gateway addresses (could lead to DoS)” to “Disabled”.

Additional Identifiers

Rule ID: SV-29366r1_rule

Vulnerability ID: V-4112

Group Title: Disable Router Discovery

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CCIs

CCIs tied to check.

Number	Definition
CCI-002385	The information system protects against or limits the effects of organization-defined types of denial of service attacks by employing organization-defined security safeguards.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
SC-5	Denial Of Service Protection