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  2. CVE-2015-1637
ID CVE-2015-1637
Summary 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
Vulnerable Configurations
  • cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_8:-:*:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_8:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
    cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
  • cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
    cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
CVSS
Base: 4.3 (as of 07-04-2021 - 17:15)
Impact:
Exploitability:
CWE CWE-310
CAPEC
  • Signature Spoofing by Key Recreation
    An attacker obtains an authoritative or reputable signer's private signature key by exploiting a cryptographic weakness in the signature algorithm or pseudorandom number generation and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
NONE PARTIAL NONE
cvss-vector via4 AV:N/AC:M/Au:N/C:N/I:P/A:N
msbulletin via4
bulletin_id MS15-031
bulletin_url
date 2015-03-10T00:00:00
impact Security Feature Bypass
knowledgebase_id 3046049
knowledgebase_url
severity Important
title Vulnerability in Schannel Could Allow Security Feature Bypass
refmap via4
bid 72965
confirm https://technet.microsoft.com/library/security/3046015
misc https://freakattack.com/
sectrack 1031833
Last major update 07-04-2021 - 17:15
Published 06-03-2015 - 17:59
Last modified 07-04-2021 - 17:15
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