Proof of concept
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30 Jan 2020
29 Jan 2020
How to fix?
io.netty:netty-all to version 4.1.44.Final or higher.
io.netty:netty-all is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.
Affected versions of this package are vulnerable to HTTP Request Smuggling. It allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax or as an "invalid fold."