About Polkit pkexec (#11)

Add polkit description to Readme
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@ -32,3 +32,7 @@ pkexec --version |
See the pkexec manual page for more details. See the pkexec manual page for more details.
vagrant@ubuntu-impish:~/CVE-2021-4034$ vagrant@ubuntu-impish:~/CVE-2021-4034$
``` ```
## About Polkit pkexec for Linux
Polkit (formerly PolicyKit) is a component for controlling system-wide privileges in Unix-like operating systems. It provides an organized way for non-privileged processes to communicate with privileged processes. It is also possible to use polkit to execute commands with elevated privileges using the command pkexec followed by the command intended to be executed (with root permission).