CVE-2011-4138 Information

Description

The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 originally tests a URL’s validity through a HEAD request but then uses a GET request for the new target URL in the case of a redirect which might allow remote attackers to trigger arbitrary GET requests with an unintended source IP address via a crafted Location header.

Reference

http://openwall.com/lists/oss-security/2011/09/11/1 http://openwall.com/lists/oss-security/2011/09/13/2 http://secunia.com/advisories/46614 http://www.debian.org/security/2011/dsa-2332 https://bugzilla.redhat.com/show_bug.cgi?id=737366 https://hermes.opensuse.org/messages/14700881 https://www.djangoproject.com/weblog/2011/sep/09/ https://www.djangoproject.com/weblog/2011/sep/10/127/