CVE-2016-9015
OpenSSL urllib3 TLS Certificate Validation Bypass
Description
Versions 1.17 and 1.18 of the Python urllib3 library suffer from a vulnerability that can cause them, in certain configurations, to not correctly validate TLS certificates. This places users of the library with those configurations at risk of man-in-the-middle and information leakage attacks. This vulnerability affects users using versions 1.17 and 1.18 of the urllib3 library, who are using the optional PyOpenSSL support for TLS instead of the regular standard library TLS backend, and who are using OpenSSL 1.1.0 via PyOpenSSL. This is an extremely uncommon configuration, so the security impact of this vulnerability is low.
INFO
Published Date :
Jan. 11, 2017, 4:59 p.m.
Last Modified :
April 20, 2025, 1:37 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2016-9015 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-9015.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2016/10/27/6 | Mailing List Mitigation |
| http://www.securityfocus.com/bid/93941 | Third Party Advisory VDB Entry |
| http://www.openwall.com/lists/oss-security/2016/10/27/6 | Mailing List Mitigation |
| http://www.securityfocus.com/bid/93941 | Third Party Advisory VDB Entry |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-9015 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-9015 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2016/10/27/6 Added Reference http://www.securityfocus.com/bid/93941 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jan. 13, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:H/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Changed Reference Type http://www.securityfocus.com/bid/93941 No Types Assigned http://www.securityfocus.com/bid/93941 Third Party Advisory, VDB Entry Changed Reference Type http://www.openwall.com/lists/oss-security/2016/10/27/6 No Types Assigned http://www.openwall.com/lists/oss-security/2016/10/27/6 Mitigation, Mailing List Added CWE CWE-295 Added CPE Configuration OR *cpe:2.3:a:python:urllib3:1.17:*:*:*:*:*:*:* *cpe:2.3:a:python:urllib3:1.18:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-9015 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-9015
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.55 }} -0.36%
score
0.65305
percentile