Vulnerability identifier: #VU42484

Vulnerability risk: Low

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

CVE-ID: CVE-2013-6044

CWE-ID: CWE-79

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 manipulate data.

The is_safe_url function in utils/http.py in Django 1.4.x before 1.4.6, 1.5.x before 1.5.2, and 1.6 before beta 2 treats a URL's scheme as safe even if it is not HTTP or HTTPS, which might introduce cross-site scripting (XSS) or other vulnerabilities into Django applications that use this function, as demonstrated by "the login view in django.contrib.auth.views" and the javascript: scheme.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Django: 1.4 - 1.6

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External links
http://lists.opensuse.org/opensuse-updates/2013-10/msg00015.html
http://rhn.redhat.com/errata/RHSA-2013-1521.html
http://seclists.org/oss-sec/2013/q3/369
http://seclists.org/oss-sec/2013/q3/411
http://secunia.com/advisories/54476
http://www.debian.org/security/2013/dsa-2740
http://www.securityfocus.com/bid/61777
http://www.securitytracker.com/id/1028915
http://exchange.xforce.ibmcloud.com/vulnerabilities/86437
http://github.com/django/django/commit/1a274ccd6bc1afbdac80344c9b6e5810c1162b5f
http://github.com/django/django/commit/ae3535169af804352517b7fea94a42a1c9c4b762
http://github.com/django/django/commit/ec67af0bd609c412b76eaa4cc89968a2a8e5ad6a
http://www.djangoproject.com/weblog/2013/aug/13/security-releases-issued

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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.