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FreeBSD: VID-36A35D83-C560-11EB-84AB-E0D55E2A8BF9 (CVE-2021-3560): polkit -- local privilege escalation using polkit_system_bus_name_get_creds_sync

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FreeBSD: VID-36A35D83-C560-11EB-84AB-E0D55E2A8BF9 (CVE-2021-3560): polkit -- local privilege escalation using polkit_system_bus_name_get_creds_sync

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
06/03/2021
Created
11/08/2022
Added
11/04/2022
Modified
05/15/2023

Description

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.

Solution(s)

  • freebsd-upgrade-package-polkit

References

  • CVE-2021-3560
  • USN-4980-1

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