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CVE-2021-3560

nvd nist
Published: Feb 16, 2022Modified: Nov 6, 2025CISA KEV

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

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.

Affected (6)

Show all products
Polkit Project: Polkit · Debian: Debian Linux · Canonical: Ubuntu Linux · Redhat: Virtualization, Virtualization Host, Openshift Container Platform
Polkit Project
1 product
Polkit
Debian
1 product
Debian Linux
Canonical
1 product
Ubuntu Linux
Redhat
3 products
Virtualization
Virtualization Host
Openshift Container Platform
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Polkit
Before 0.119
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 11.0
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Ubuntu Linux
Version 20.04
Configuration D
2 vulnerable
Vulnerable SoftwareAffected Versions
Virtualization
Version 4.0
Virtualization Host
Version 4.0
Configuration E
1 vulnerable · 2 platform
Vulnerable SoftwareAffected Versions
Openshift Container Platform
Version 4.7
Running on/withPlatform Versions
Redhat
Enterprise Linux
Version 7.0
Redhat
Enterprise Linux
Version 8.0

Related CWEs

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. This allows attackers to bypass intended access restrictions.

References (9)

Source: secalert@redhat.com
Third Party AdvisoryVDB Entry
Source: secalert@redhat.com
Third Party AdvisoryVDB Entry
Source: secalert@redhat.com
Issue TrackingPatchVendor Advisory
Source: secalert@redhat.com
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

Timeline

No history available yet.