Exploited
high
7.8
CWE
754 863
Advisory Published
CVE Published
Updated

CVE-2021-3560: Red Hat Polkit Incorrect Authorization Vulnerability

First published: Tue May 18 2021(Updated: )

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

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/polkit<0:0.115-11.el8_4.1
0:0.115-11.el8_4.1
redhat/polkit<0:0.115-9.el8_1.1
0:0.115-9.el8_1.1
redhat/polkit<0:0.115-11.el8_2.1
0:0.115-11.el8_2.1
redhat/cri-o<0:1.20.3-6.rhaos4.7.git0d0f863.el8
0:1.20.3-6.rhaos4.7.git0d0f863.el8
redhat/dhcp<12:4.3.6-41.el8_3.1
12:4.3.6-41.el8_3.1
redhat/openshift-clients<0:4.7.0-202106252127.p0.git.8b4b094.el7
0:4.7.0-202106252127.p0.git.8b4b094.el7
redhat/openshift-kuryr<0:4.7.0-202106232224.p0.git.c7654fb.el8
0:4.7.0-202106232224.p0.git.c7654fb.el8
redhat/polkit<0:0.115-11.el8_3.2
0:0.115-11.el8_3.2
redhat/redhat-virtualization-host<0:4.4.6-20210615.0.el8_4
0:4.4.6-20210615.0.el8_4
Red Hat Polkit
redhat/polkit<0.119
0.119
Polkit Project Polkit<0.119
Debian Debian Linux=11.0
Canonical Ubuntu Linux=20.04
Redhat Virtualization=4.0
Redhat Virtualization Host=4.0
Redhat Enterprise Linux=8.0
Redhat Openshift Container Platform=4.7
Redhat Enterprise Linux=7.0

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=1961710

Remedy

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2021-3560?

    CVE-2021-3560 is a vulnerability in Red Hat Polkit that allows unprivileged local attackers to bypass credential checks and elevate their privileges.

  • How does CVE-2021-3560 impact Red Hat Polkit?

    CVE-2021-3560 allows unprivileged local attackers to bypass credential checks and gain root access, potentially allowing them to create a new local administrator.

  • What is the severity of CVE-2021-3560?

    The severity of CVE-2021-3560 is high, with a CVSS score of 7.8.

  • How can I fix CVE-2021-3560?

    To fix CVE-2021-3560, users should update Red Hat Polkit to version 0.119 or apply the appropriate security patch provided by Red Hat.

  • Where can I find more information about CVE-2021-3560?

    For more information about CVE-2021-3560, you can refer to the following resources: [Bugzilla - CVE-2021-3560](https://bugzilla.redhat.com/show_bug.cgi?id=1961710), [Bugzilla - CVE-2021-3560](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1967424), [Red Hat Security Advisory - RHSA-2021:2236](https://access.redhat.com/errata/RHSA-2021:2236)

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