HTTP Request Smuggling Research | Port Swigger Research
Summary: HTTP request smuggling is an attack technique that sends ambiguous HTTP requests which front-end servers interpret as different lengths, causing them to desynchronize and merge requests and responses between attackers and legitimate users. PortSwigger says the technique was first documented in 2004, largely forgotten until its 2019 research revisit, and that this work earned six figures in bug bounties and was presented at Black Hat USA and DEF CON.
What you should know: The source lists plaintext password theft and cache poisoning that persistently compromises login pages as effects of desynchronized front-end servers, and notes the technique was forgotten for roughly 15 years before a wave of discoveries and patches followed its 2019 revival.
Read the original at PortSwigger Research ↗
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