CVE-2013-7440

python: wildcard matching rules do not follow RFC 6125

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.

La función ssl.match_hostname en CPython (también concida como Python) en versiones anteriores a 2.7.9 y 3.x en versiones anteriores a 3.3.3 no maneja correctamente comodines en los nombres de host, lo que podría permitir a atacantes man-in-the-middle suplantar servidores a través de un certificado manipulado.

Multiple flaws were found in the way Python's SSL module performed matching of certificate names containing wildcards. A remote attacker able to obtain a valid certificate that contained certain names with wildcards could have them incorrectly accepted by Python SSL clients, not following the RFC 6125 recommendations.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-05-19 CVE Reserved
2016-05-31 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-19: Data Processing Errors

CAPEC

References (8)

URL	Tag	Source
http://seclists.org/oss-sec/2015/q2/483	Mailing List
http://seclists.org/oss-sec/2015/q2/523	Mailing List
http://www.securityfocus.com/bid/74707	Vdb Entry
https://bugs.python.org/issue17997	X_refsource_confirm
https://hg.python.org/cpython/rev/10d0edadbcdd	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2016:1166	2016-11-28
https://bugzilla.redhat.com/show_bug.cgi?id=1224999	2016-05-31
https://access.redhat.com/security/cve/CVE-2013-7440	2016-05-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				<= 2.7.8 Search vendor "Python" for product "Python" and version " <= 2.7.8"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.0 Search vendor "Python" for product "Python" and version "3.0"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.0.1 Search vendor "Python" for product "Python" and version "3.0.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1 Search vendor "Python" for product "Python" and version "3.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.1 Search vendor "Python" for product "Python" and version "3.1.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.2 Search vendor "Python" for product "Python" and version "3.1.2"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.3 Search vendor "Python" for product "Python" and version "3.1.3"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.4 Search vendor "Python" for product "Python" and version "3.1.4"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.5 Search vendor "Python" for product "Python" and version "3.1.5"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.1.2150 Search vendor "Python" for product "Python" and version "3.1.2150"		x64		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2 Search vendor "Python" for product "Python" and version "3.2"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2 Search vendor "Python" for product "Python" and version "3.2"		alpha		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2.0 Search vendor "Python" for product "Python" and version "3.2.0"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2.1 Search vendor "Python" for product "Python" and version "3.2.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2.2 Search vendor "Python" for product "Python" and version "3.2.2"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2.3 Search vendor "Python" for product "Python" and version "3.2.3"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2.4 Search vendor "Python" for product "Python" and version "3.2.4"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2.5 Search vendor "Python" for product "Python" and version "3.2.5"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2.6 Search vendor "Python" for product "Python" and version "3.2.6"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.2.2150 Search vendor "Python" for product "Python" and version "3.2.2150"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.3 Search vendor "Python" for product "Python" and version "3.3"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.3 Search vendor "Python" for product "Python" and version "3.3"		beta2		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.3.0 Search vendor "Python" for product "Python" and version "3.3.0"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.3.1 Search vendor "Python" for product "Python" and version "3.3.1"		-		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.3.1 Search vendor "Python" for product "Python" and version "3.3.1"		rc1		Affected
Python Search vendor "Python"		Python Search vendor "Python" for product "Python"				3.3.2 Search vendor "Python" for product "Python" and version "3.3.2"		-		Affected