CVE-2011-4138

Advisory

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.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

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.

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4138
• https://www.djangoproject.com/weblog/2011/sep/10/127/
• http://openwall.com/lists/oss-security/2011/09/13/2
• https://bugzilla.redhat.com/show_bug.cgi?id=737366
• http://openwall.com/lists/oss-security/2011/09/11/1
• https://www.djangoproject.com/weblog/2011/sep/09/
• http://secunia.com/advisories/46614
• http://www.debian.org/security/2011/dsa-2332
• https://hermes.opensuse.org/messages/14700881