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The system is configured to redirect ICMP.


Overview

Finding ID Version Rule ID IA Controls Severity
V-4111 3.095 SV-25066r1_rule Low
Description
When disabled, forces ICMP to be routed via shortest path first.
STIG Date
Windows 7 Security Technical Implementation Guide 2017-02-21

Details

Check Text ( C-286r1_chk )
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: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes” is not set to “Disabled”, then this is a finding.

The policy referenced configures the following registry value:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \System\CurrentControlSet\Services\Tcpip\Parameters\

Value Name: EnableICMPRedirect

Value Type: REG_DWORD
Value: 0
Fix Text (F-5715r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes” to “Disabled”.