Linux is widely known as a highly secure operating system.
It is so devastating that a criticality rating of 8 was issued to the vulnerability.
So, what exactly is Polkit CVE-2021-4034, and how can you fix it?
What Is the CVE-2021-4034 Polkit Privilege Escalation Vulnerability?
Polkit privilege escalation vulnerability weaponizespkexec, an executable part of the PolicyKit component of Linux.
pkexec is an executable that allows a user to execute commands as another user.
This bug has been termed “Pwnkit” and is being tracked as CVE-2021-4034.
The Polkit vulnerability in Linux allows non-privileged users to execute malicious code as root.
How Is CVE-2021-4034 Polkit Privilege Escalation Vulnerability Exploited?
It defines and manages policies that allow unprivileged processes to communicate with privileged processes on a Linux system.
The root of the vulnerability lies in the source code of this executable.
Who Is Impacted by the CVE-2021-4034 Vulnerability?
So,check the build version of your distroand update it as soon as possible.
How to Fix the CVE-2021-4034 Polkit Privilege Escalation Vulnerability and Are You Safe?
To fix the CVE-2021-4034 Polkit privilege escalation vulnerability, upgrade your Linux distribution to the latest release.
This data should be sufficient to illustrate the scope of CVE-2021-4034 Polkit vulnerability and how devastating it could be.
It is advised to all individuals and server maintainers to update and upgrade their systems.
