Arbitrary GET Request Vulnerability in Django URLField Implementation

CVE-2011-4138 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

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.

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