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cve[email protected]CVE-2015-1637
HistoryMar 06, 2015 - 5:59 p.m.

CVE-2015-1637

2015-03-0617:59:00
CWE-310
web.nvd.nist.gov
130
cve-2015-1637
schannel
microsoft
windows
tls
vulnerability
freak
cipher
downgrade
attack

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

6.2 Medium

AI Score

Confidence

Low

0.963 High

EPSS

Percentile

99.6%

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.

Affected configurations

NVD
Node
microsoftwindows_7Match-sp1
OR
microsoftwindows_8Match-
OR
microsoftwindows_8.1Match-
OR
microsoftwindows_rtMatch-
OR
microsoftwindows_rt_8.1Match-
OR
microsoftwindows_server_2003Match-sp2
OR
microsoftwindows_server_2008Match-sp2
OR
microsoftwindows_server_2008Matchr2sp1itanium
OR
microsoftwindows_server_2008Matchr2sp1x64
OR
microsoftwindows_server_2012Match-
OR
microsoftwindows_server_2012Matchr2
OR
microsoftwindows_vistaMatch-sp2

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

6.2 Medium

AI Score

Confidence

Low

0.963 High

EPSS

Percentile

99.6%