7.8

CVE-2021-3560

Warning
Exploit

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.

Data is provided by the National Vulnerability Database (NVD)
Polkit Project ≫ Polkit Version < 0.119
Debian ≫ Debian Linux Version11.0
Canonical ≫ Ubuntu Linux Version20.04
Redhat ≫ Virtualization Version4.0
   Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Virtualization Host Version4.0
   Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Openshift Container Platform Version4.7
   Redhat ≫ Enterprise Linux Version7.0
   Redhat ≫ Enterprise Linux Version8.0

12.05.2023: CISA Known Exploited Vulnerabilities (KEV) Catalog

Red Hat Polkit Incorrect Authorization Vulnerability

Vulnerability

Red Hat Polkit contains an incorrect authorization vulnerability through the bypassing of credential checks for D-Bus requests, allowing for privilege escalation.

Description

Apply updates per vendor instructions.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 13.22% 0.939
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-754 Improper Check for Unusual or Exceptional Conditions

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.

CWE-863 Incorrect Authorization

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.

https://bugzilla.redhat.com/show_bug.cgi?id=1961710
Patch
Vendor Advisory
Issue Tracking