CCE-99491-3| Platform: cpe:/o:microsoft:windows_server_2016 | Date: (C)2023-09-08 (M)2023-10-13 |
MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)
Countermeasure:
Configure the MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing) entry to a value of Highest protection, source routing is completely disabled.
The possible values for this registry entry are:
? 0, 1, or 2. The default configuration is 1 (source routed packets are not forwarded).
In the SCE UI, the following list of options appears:
? No additional protection, source routed packets are allowed.
? Medium, source routed packets ignored when IP forwarding is enabled.
? Highest protection, source routing is completely disabled.
? Not Defined.
Potential Impact:
If you configure this value to 2, all incoming source routed packets will be dropped.
Parameter:
[No additional protection, source routed packets are allowed/Medium, source routed packets ignored when IP forwarding is enabled/Highest protection, source routing is completely disabled]
Technical Mechanism:
(1) GPO: Computer Configuration\Administrative Templates\MSS (Legacy)\MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)
(2) REG: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters!DisableIPSourceRouting
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 8.1 | Attack Vector: NETWORK |
| Exploit Score: 2.2 | Attack Complexity: HIGH |
| Impact Score: 5.9 | Privileges Required: NONE |
| Severity: HIGH | User Interaction: NONE |
| Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | Scope: UNCHANGED |
| | Confidentiality: HIGH |
| | Integrity: HIGH |
| | Availability: HIGH |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:92713 |
