A security feature bypass vulnerability exists when Windows Hyper-V BIOS loader fails to provide a high-entropy source, aka Windows Hyper-V Security Feature Bypass Vulnerability. This affects Windows Server 2016, Windows 10, Windows 10 Servers.
Weakness
The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_10 | Microsoft | - (including) | - (including) |
| Windows_10 | Microsoft | 1607 (including) | 1607 (including) |
| Windows_10 | Microsoft | 1703 (including) | 1703 (including) |
| Windows_10 | Microsoft | 1709 (including) | 1709 (including) |
| Windows_10 | Microsoft | 1803 (including) | 1803 (including) |
| Windows_server_2016 | Microsoft | - (including) | - (including) |
| Windows_server_2016 | Microsoft | 1709 (including) | 1709 (including) |
| Windows_server_2016 | Microsoft | 1803 (including) | 1803 (including) |
Potential Mitigations
Related Attack Patterns
References
- http://www.securityfocus.com/bid/105240
- http://www.securitytracker.com/id/1041624
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435
- http://www.securityfocus.com/bid/105240
- http://www.securitytracker.com/id/1041624
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435