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CPython Man In The Middle Attack Vulnerability
Information
Severity
Severity
Medium
Family
Family
Web application abuses
CVSSv2 Base
CVSSv2 Base
4.3
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Solution Type
Solution Type
Vendor Patch
Created
Created
7 years ago
Modified
Modified
5 years ago
Summary
CPython before 2.7.9 and 3.x before 3.3.3 suffers from a man in the middle attack vulnerability via a crafted certificate.
Insight
Insight
The ssl.match_hostname function in CPython does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.
Affected Software
Affected Software
CPython before 2.7.9 and 3.x before 3.3.3.
Solution
Solution
Upgrade to 3.3.3 or a higher version if Python 3.x is installed, otherwise: upgrade to 2.7.9 or a higher version.