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Today we will explore an exciting method to remotely execute code even if an administrator set disable_functions in the PHP configuration file. It works at most popular UNIX-like systems. CVE-2018–19518 was assigned to the vulnerability was found by a man with the @crlf nickname. Let’s see details of that vulnerability and how can we exploit it. Testing Environment For testing manipulations, we need to up a testing environment. I’ll use docker container with Debian 9…