Patch Released for 7-Year-Old Privilege Escalation Bug In Linux Service Polkit

Long-time Slashdot reader wildstoo writes: In a blog post on Thursday, GitHub security researcher Kevin Backhouse announced that Polkit, a Linux system service included in several modern Linux distros that provides an organized way for non-privileged processes to communicate with privileged ones, has been harbouring a major security bug for seven years. The bug, assigned (CVE-2021-3560) allows a non-privileged user to gain administrative shell access with a handful of standard command line tools. The bug was fixed on June 3, 2021 in a coordinated disclosure. "It's used by systemd," GitHub's blog post points out, "so any Linux distribution that uses systemd also uses polkit..." "It's very simple and quick to exploit, so it's important that you update your Linux installations as soon as possible. Any system that has polkit version 0.113 (or later) installed is vulnerable. That includes popular distributions such as RHEL 8 and Ubuntu 20.04."

Read more of this story at Slashdot.