CVEvulnerability
CVE-2017-8495
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2017-07-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 7.5 HIGH — CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.0 MEDIUM — AV:N/AC:M/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-287
Description
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.
Affected configurations
• microsoft windows 10
• microsoft windows 10 1511
• microsoft windows 10 1607
• microsoft windows 10 1703
• microsoft windows 7
• microsoft windows 8.1
• microsoft windows rt 8.1
• microsoft windows server 2008
• microsoft windows server 2008 r2
• microsoft windows server 2012
• microsoft windows server 2012 r2
• microsoft windows server 2016
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- http://www.securityfocus.com/bid/99424 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038862 Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495 Patch, Vendor Advisory
- https://www.orpheus-lyre.info/ Third Party Advisory
- http://www.securityfocus.com/bid/99424 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038862 Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495 Patch, Vendor Advisory
- https://www.orpheus-lyre.info/ Third Party Advisory