It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.
| Link | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1961710 | issue tracking patch vendor advisory |
| https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/ | third party advisory exploit |
| http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html | vdb entry third party advisory |
| http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html | vdb entry third party advisory |