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Kevin Backhouse, a researcher at GitHub Security Lab revealed the details of an easy-to-exploit Linux flaw that can be exploited to escalate privileges to root on the targeted system. The vulnerability, classified as highly critical and termed as CVE-2021-3560, affects polkit, a system service installed by default on many Linux distributions.
On Thursday, Kevin published a blog post explaining his findings, as well as a short video detailing the exploit in polkit. A local, unprivileged attacker can use the flaw to escalate privileges to root with only a few commands executed in the terminal.
Security researchers have admitted the vulnerability termed CVE-2021-3560 impacts some versions of Red Hat Enterprise Linux, Fedora, Debian, and Ubuntu. On June 3, a patch for CVE-2021-3560 was released.
“The bug I found was quite old. It was introduced seven years ago in commit bfa5036 and first shipped with polkit version 0.113. However, many of the most popular Linux distributions didn’t ship the vulnerable version until more recently,” Backhouse stated.
“The bug has a slightly different history on Debian and its derivatives (such as Ubuntu) because D
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Read the original article: GitHub Releases Key Findings of an Easy-to-Exploit Linux flaw