Arecibo – Endpoint for Out-of-Band Exfiltration


In the process of identifying and exploiting vulnerabilities, it is sometimes necessary to resort to Out of Band (OOB) techniques in order to exfiltrate information through DNS resolutions or HTTP requests. To address this kind of situation the faster and simpler solution can be the use of a Burp Collaborator instance or a online service like, but this has a big disadvantage: both are services hosted by a third party. Local instances of Burp Collaborator or requestbin can be deployed but they are heavy and poorly customizable or adaptable.



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