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Creators/Authors contains: "Gavazzi, Anthony"

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  1. ; ; ; (, ACM)
    Modern web applications involve multiple HTTP processors on the traffic path, each acting as a reverse proxy and processing client requests. Even when such proxies are secure in isolation, when combined into complex systems, minor HTTP parsing discrepancies between them can lead to various severe attacks such as cache poisoning and HTTP request smuggling attacks. We propose Gudifu, a new approach that improves the state-of- the-art HTTP differential fuzzing approaches in two main ways: 1) taking a graybox fuzzing approach to probe the parsing behavior of HTTP proxies and 2) using a new algorithm which is capable of searching for discrepancies in the entire HTTP request. These improvements lead to the discovery of significantly more parsing discrepancies and discrepancy-based attack vectors which were previously unknown. 
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    Accepted Manuscript Full Text Available
  2. ; ; ; (, The 27th International Symposium on Research in Attacks, Intrusions and Defenses (RAID))
    Accepted Manuscript Full Text Available