Improper Authentication in Django

1) Improper Authentication

EUVDB-ID: #VU32615

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-1443

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The authentication framework (django.contrib.auth) in Django 1.4.x before 1.4.8, 1.5.x before 1.5.4, and 1.6.x before 1.6 beta 4 allows remote attackers to cause a denial of service (CPU consumption) via a long password which is then hashed.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Django: 1.4.1 - 1.4.7

CPE2.3

• cpe:2.3:a:django_software_foundation:django:1.4.7:*:*:*:*:*:*:*

External links

https://lists.opensuse.org/opensuse-updates/2013-10/msg00015.html
https://lists.opensuse.org/opensuse-updates/2013-11/msg00035.html
https://python.6.x6.nabble.com/Set-a-reasonable-upper-bound-on-password-length-td5032218.html
https://www.debian.org/security/2013/dsa-2758
https://www.djangoproject.com/weblog/2013/sep/15/security/

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.