CVE-2016-7401

python-django: CSRF protection bypass on a site with Google Analytics

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The cookie parsing code in Django before 1.8.15 and 1.9.x before 1.9.10, when used on a site with Google Analytics, allows remote attackers to bypass an intended CSRF protection mechanism by setting arbitrary cookies.

El código de análisis de cookie en Django en versiones anteriores a 1.8.15 y 1.9.x en versiones anteriores a 1.9.10, cuando se utiliza en un sitio con Google Analytics, permite a atacantes remotos eludir un mecanismo de protección CSRF destinado estableciendo cookies arbitrarias.

A CSRF flaw was found in Django, where an interaction between Google Analytics and Django's cookie parsing could allow an attacker to set arbitrary cookies leading to a bypass of CSRF protection. In this update, the parser for ''request.COOKIES'' has been simplified to better match browser behavior and to mitigate this attack. ''request.COOKIES'' may now contain cookies that are invalid according to RFC 6265 but are possible to set using ''document.cookie''.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-09-09 CVE Reserved
2016-09-27 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-254: 7PK - Security Features
CWE-352: Cross-Site Request Forgery (CSRF)

CAPEC

References (13)

URL	Tag	Source
http://www.securityfocus.com/bid/93182	Third Party Advisory
http://www.securitytracker.com/id/1036899	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://www.djangoproject.com/weblog/2016/sep/26/security-releases	2018-01-05

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2016-2038.html	2018-01-05
http://rhn.redhat.com/errata/RHSA-2016-2039.html	2018-01-05
http://rhn.redhat.com/errata/RHSA-2016-2040.html	2018-01-05
http://rhn.redhat.com/errata/RHSA-2016-2041.html	2018-01-05
http://rhn.redhat.com/errata/RHSA-2016-2042.html	2018-01-05
http://rhn.redhat.com/errata/RHSA-2016-2043.html	2018-01-05
http://www.debian.org/security/2016/dsa-3678	2018-01-05
http://www.ubuntu.com/usn/USN-3089-1	2018-01-05
https://access.redhat.com/security/cve/CVE-2016-7401	2016-10-10
https://bugzilla.redhat.com/show_bug.cgi?id=1377376	2016-10-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				<= 1.8.14 Search vendor "Djangoproject" for product "Django" and version " <= 1.8.14"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.0 Search vendor "Djangoproject" for product "Django" and version "1.9.0"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.1 Search vendor "Djangoproject" for product "Django" and version "1.9.1"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.2 Search vendor "Djangoproject" for product "Django" and version "1.9.2"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.3 Search vendor "Djangoproject" for product "Django" and version "1.9.3"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.4 Search vendor "Djangoproject" for product "Django" and version "1.9.4"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.5 Search vendor "Djangoproject" for product "Django" and version "1.9.5"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.6 Search vendor "Djangoproject" for product "Django" and version "1.9.6"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.7 Search vendor "Djangoproject" for product "Django" and version "1.9.7"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.8 Search vendor "Djangoproject" for product "Django" and version "1.9.8"		-		Affected
Djangoproject Search vendor "Djangoproject"		Django Search vendor "Djangoproject" for product "Django"				1.9.9 Search vendor "Djangoproject" for product "Django" and version "1.9.9"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected