Modern websites are browsed through a lens of transparent systems built to enhance performance, extract analytics and supply numerous additional services. This almost invisible attack surface has been largely overlooked for years. In this paper, I'll show how to use malformed requests and esoteric headers to coax these systems into revealing themselves and opening gateways into our victim's networks. I'll share how by combining these techniques with a little Bash I was able to thoroughly perforate DoD networks, trivially earn over $30k in vulnerability bounties, and accidentally exploit my own ISP. While deconstructing the damage, I'll also showcase several hidden systems it unveiled, including not only covert request interception by the UK's largest ISP, but a substantially more suspicious Colombian ISP, a confused Tor backend, and a system that enabled reflected XSS to be escalated into SSRF. Cashback script downloads. You'll also learn strategies to unblinker blind SSRF using exploit chains and caching mechanisms.
Finally, to further drag these systems out into the light, I'll release Collaborator Everywhere - an open source Burp Suite extension which augments your web traffic with a selection of the best techniques to harvest leads from cooperative websites. You can also on this research, or read it as a. Outline • • • • • • • • • • • • • • • • • • • • •. Whether it's ShellShock, StageFright or ImageTragick, the discovery of a serious vulnerability in an overlooked chunk of attack surface is often followed by numerous similar issues. This is partly due to the 'softness' present in any significant piece of attack surface that has escaped attention from security testers.
In this paper, I will show that the rich attack surface offered by reverse proxies, load balancers, and backend analytics systems has been unduly overlooked for years. I'll do this by describing a simple methodology for efficiently auditing such systems at scale, then showcasing a selection of the numerous critical vulnerabilities it found. I'll also release two tools. Collaborator Everywhere is a Burp Suite extension that helps decloak backend systems by automatically injecting some of the less harmful payloads into your web traffic. It can be installed via the BApp store, or via the source. Watch online shaktimaan tv serial. Rendering Engine Hackability Probe is a web page that analyses the attack surface of connecting clients, and can be downloaded from or used directly. This line of research requires targeting systems that were designed to be invisible.