Full Disclosure mailing list archives
Facebook URL Redirect Vulnerability
From: Nathan Power <np () securitypentest com>
Date: Mon, 28 Feb 2011 12:42:50 -0500
------------------------------------------------------------------ 1. Summary: Once the victim clicks on a specially crafted Facebook URL they can be redirected to a malicious website. ------------------------------------------------------------------ 2. Description: Facebook applications use of 'track.php?r=' doesn't sanitize the redirection input properly. This allows an attacker to input any URL that a victim will get redirected too. It is not required for the victim to be login to Facebook for this attack to work. The following is an example of a vulnerable URL: http://apps.facebook.com/truthsaboutu/track.php?r=http://www.securitypentest.com The following Google search query can be used to find vulnerable URLs: site:facebook.com inurl:"track.php?" inurl:"r=" ------------------------------------------------------------------ 3. Impact: Potentially allow an attacker to compromise a victim’s Facebook account and/or computer system. ------------------------------------------------------------------ 4. Affected Products: www.facebook.com ------------------------------------------------------------------ 5. Solution: None ------------------------------------------------------------------ 6. Time Table: 2/27/2011 Reported Vulnerability to the Vendor ------------------------------------------------------------------ 7. Credits: Discovered by Nathan Power www.securitypentest.com ------------------------------------------------------------------
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Current thread:
- Facebook URL Redirect Vulnerability Nathan Power (Feb 28)
- Re: Facebook URL Redirect Vulnerability Javier Bassi (Feb 28)