Input validation error in Python - CVE-2014-9365
Published: December 12, 2014 / Updated: August 4, 2020
Vulnerability identifier: #VU33825
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2014-9365
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Python.org
Affected software:
Python
Python
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The HTTP clients in the (1) httplib, (2) urllib, (3) urllib2, and (4) xmlrpclib libraries in CPython (aka Python) 2.x before 2.7.9 and 3.x before 3.4.3, when accessing an HTTPS URL, do not (a) check the certificate against a trust store or verify that the server hostname matches a domain name in the subject's (b) Common Name or (c) subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate. <a href="http://cwe.mitre.org/data/definitions/295.html">CWE-295: Improper Certificate Validation</a>
How to mitigate CVE-2014-9365
Install update from vendor's website.
Sources
- http://bugs.python.org/issue22417
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- http://www.openwall.com/lists/oss-security/2014/12/11/1
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.securityfocus.com/bid/71639
- https://access.redhat.com/errata/RHSA-2016:1166
- https://access.redhat.com/errata/RHSA-2017:1162
- https://access.redhat.com/errata/RHSA-2017:1868
- https://security.gentoo.org/glsa/201503-10
- https://support.apple.com/kb/HT205031
- https://www.python.org/dev/peps/pep-0476/
- https://www.python.org/downloads/release/python-279/