Ubuntu update for Django

1) Insecure cookie handling

EUVDB-ID: #VU698

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-7401

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to interraction error between Django's cookie parsing code and Google Analytics. A remote attacker can set arbitrary cookies and bypass CSRF protection, implemented by web application.

Successful exploitation of this vulnerability may allow an attacker to bypass various website security mechanisms, based on cookies.

Mitigation

Update the affected packages

Ubuntu 16.04 LTS:

python3-django 1.8.7-1ubuntu5.2

python-django 1.8.7-1ubuntu5.2

Ubuntu 14.04 LTS:

python-django 1.6.1-2ubuntu0.15

Ubuntu 12.04 LTS:

python-django 1.3.1-4ubuntu1.21

Vulnerable software versions

Ubuntu: 12.04 - 16.04

CPE2.3

• cpe:2.3:o:canonical:ubuntu:12.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:14.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:*

External links

https://www.ubuntu.com/usn/usn-3089-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.