Vulnerability identifier: #VU32615

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-1443

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Django
Web applications / CMS

Vendor: Django Software Foundation

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

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

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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.