CVE-2021-3560

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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/	Exploit Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1961710	Issue Tracking Patch Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:polkit_project:polkit:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

OR	cpe:2.3:a:redhat:virtualization_host:4.0:::::::*
	cpe:2.3:a:redhat:virtualization:4.0:::::::*

cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:a:redhat:openshift_container_platform:4.7:*:*:*:*:*:*:*

OR	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*

Information

Published : 2022-02-16 11:15

Updated : 2022-07-11 11:05

NVD link : CVE-2021-3560

Mitre link : CVE-2021-3560

JSON object : View

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

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Products Affected

redhat

enterprise_linux
virtualization
openshift_container_platform
virtualization_host

canonical

ubuntu_linux

debian

debian_linux

polkit_project

polkit

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