The Mutiny Fuzzing Framework and Decept Proxy
Summary: Cisco ASIG's James Spadaro and Cisco Talos's Lilith Wyatt released the Mutiny Fuzzing Framework, a network fuzzer that replays captured legitimate traffic from a .fuzzer file and mutates chosen packets against a target host, prioritizing speed over thoroughness. Its companion Decept Proxy forwards plaintext or TLS traffic across TCP, UDP, DTLS, and domain socket connections, generates .fuzzer files directly, and lets Mutiny reach TLS hosts it does not natively support.
Why it matters: Mutiny is explicitly built to start network fuzzing as fast as possible at the expense of thoroughness, and it ships with separate master and experiment branches, so a team adopting it inherits the tradeoff between coverage and speed along with the stability risk of the experiment branch.
Read the original at Cisco Talos ↗
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