Dirty COW is a privilege escalation vulnerability in the Linux Kernel
dirtycow.ninja
dirtycow.ninja
As if I wasn't reading that page from a phone while running Linux on a server. Then again, the exploit didn't work for me on unpatched 3.4.112 kernel, so it might actually be correct.
For a second that sounded like the group "Cult of the dead cow" and their showpiece trojan "Back Orifice", designed to popularize the insecurity of Windows 98.
Mostly, yes exploits in the wild have been detected in HTTP requests, and as the researcher assumes this exploit could have existed for a very long time.
And it's not a local privilege escalation only as the write up assumes, it was exploited remotely!