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nvd[email protected]NVD:CVE-2021-3560
HistoryFeb 16, 2022 - 7:15 p.m.

CVE-2021-3560

2022-02-1619:15:08
CWE-863
CWE-754
[email protected]
web.nvd.nist.gov
8
cve-2021-3560
polkit
privilege escalation
credential checks
d-bus requests
root user
unprivileged local attacker
data confidentiality
data integrity
system availability

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.012

Percentile

85.1%

JSON

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 configurations

Nvd
Node
polkit_projectpolkitRange<0.119
Node
debiandebian_linuxMatch11.0
Node
canonicalubuntu_linuxMatch20.04
Node
redhatvirtualizationMatch4.0
OR
redhatvirtualization_hostMatch4.0
AND
redhatenterprise_linuxMatch8.0
Node
redhatopenshift_container_platformMatch4.7
AND
redhatenterprise_linuxMatch7.0
OR
redhatenterprise_linuxMatch8.0
VendorProductVersionCPE
polkit_projectpolkit*cpe:2.3:a:polkit_project:polkit:*:*:*:*:*:*:*:*
debiandebian_linux11.0cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
canonicalubuntu_linux20.04cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:*:*:*:*
redhatvirtualization4.0cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
redhatvirtualization_host4.0cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhatopenshift_container_platform4.7cpe:2.3:a:redhat:openshift_container_platform:4.7:*:*:*:*:*:*:*
redhatenterprise_linux7.0cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

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CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.012

Percentile

85.1%

JSON
Related for NVD:CVE-2021-3560
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