CVE-2015-1637
Description
Schannel (aka Secure Channel) in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly restrict TLS state transitions, which makes it easier for remote attackers to conduct cipher-downgrade attacks to EXPORT_RSA ciphers via crafted TLS traffic, related to the "FREAK" issue, a different vulnerability than CVE-2015-0204 and CVE-2015-1067.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| windows | - | affected | |
| windows | r2 | affected | |
References
- http://web.archive.org/web/20150321220028/https://freakattack.com/
- http://www.securityfocus.com/bid/72965
- http://www.securitytracker.com/id/1031833
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-031
- https://freakattack.com/
- https://technet.microsoft.com/library/security/3046015
- http://web.archive.org/web/20150321220028/https://freakattack.com/
- http://www.securityfocus.com/bid/72965
- http://www.securitytracker.com/id/1031833
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-031
- https://freakattack.com/
- https://technet.microsoft.com/library/security/3046015
CWEs
CWE-310
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.