Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka Kerberos SNAME Security Feature Bypass Vulnerability or Orpheus Lyre.
Weakness
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_10 | Microsoft | - (including) | - (including) |
| Windows_10 | Microsoft | 1511 (including) | 1511 (including) |
| Windows_10 | Microsoft | 1607 (including) | 1607 (including) |
| Windows_10 | Microsoft | 1703 (including) | 1703 (including) |
| Windows_7 | Microsoft | * | * |
| Windows_8.1 | Microsoft | * | * |
| Windows_rt_8.1 | Microsoft | * | * |
| Windows_server_2008 | Microsoft | * | * |
| Windows_server_2008 | Microsoft | r2-sp1 (including) | r2-sp1 (including) |
| Windows_server_2012 | Microsoft | * | * |
| Windows_server_2012 | Microsoft | r2 (including) | r2 (including) |
| Windows_server_2016 | Microsoft | * | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/114.html
- https://cwe.mitre.org/data/definitions/115.html
- https://cwe.mitre.org/data/definitions/151.html
- https://cwe.mitre.org/data/definitions/194.html
- https://cwe.mitre.org/data/definitions/22.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/593.html
- https://cwe.mitre.org/data/definitions/633.html
- https://cwe.mitre.org/data/definitions/650.html
- https://cwe.mitre.org/data/definitions/94.html
References
- http://www.securityfocus.com/bid/99424
- http://www.securitytracker.com/id/1038862
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495
- https://www.orpheus-lyre.info/
- http://www.securityfocus.com/bid/99424
- http://www.securitytracker.com/id/1038862
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495
- https://www.orpheus-lyre.info/