CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.1 | $0-$5k | 0.00 |
A vulnerability was found in Jean-paul Calderone pyOpenSSL up to 0.13 (Network Encryption Software). It has been declared as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. As an impact it is known to affect integrity. CVE summarizes:
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a \0 character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
The weakness was presented 09/30/2013 by Vincent Danen (Website). The advisory is shared for download at mail.python.org. This vulnerability was named CVE-2013-4314 since 06/12/2013. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 70105 (Debian DSA-2763-1 : pyopenssl - hostname check bypassing), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks.
Upgrading to version 0.12 eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (86936) and Tenable (70105).
Product
Type
Vendor
Name
Version
Support
- end of life (old version)
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 70105
Nessus Name: Debian DSA-2763-1 : pyopenssl - hostname check bypassing
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 892763
OpenVAS Name: Debian Security Advisory DSA 2763-1 (pyopenssl - hostname check bypassing
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: pyOpenSSL 0.12
Timeline
06/12/2013 🔍09/06/2013 🔍
09/06/2013 🔍
09/17/2013 🔍
09/25/2013 🔍
09/30/2013 🔍
09/30/2013 🔍
03/24/2015 🔍
01/08/2022 🔍
Sources
Advisory: DSA-2763Researcher: Vincent Danen
Status: Not defined
Confirmation: 🔍
CVE: CVE-2013-4314 (🔍)
OVAL: 🔍
X-Force: 86936
Vulnerability Center: 41528 - pyOpenSSL Before 0.13.1 Remote Spoofing Vulnerability due to a Flaw When Processing the subjectAltName, Medium
SecurityFocus: 62258 - pyOpenSSL SSL Client Certificate Validation Security Bypass Vulnerability
Entry
Created: 03/24/2015 15:54Updated: 01/08/2022 03:08
Changes: 03/24/2015 15:54 (66), 05/11/2017 08:49 (6), 01/08/2022 03:01 (3), 01/08/2022 03:08 (2)
Complete: 🔍
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