CVE-2015-1637

MEDIUM

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.

References

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

Details

Source: MITRE

Published: 2015-03-06

Updated: 2019-05-14

Type: CWE-310

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM