high
8.8
CWE
434
Advisory Published
Updated

CVE-2021-40905: Malicious File Upload

First published: Fri Mar 25 2022(Updated: )

** DISPUTED ** The web management console of CheckMK Enterprise Edition (versions 1.5.0 to 2.0.0p9) does not properly sanitise the uploading of ".mkp" files, which are Extension Packages, making remote code execution possible. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session of a user with administrator role. NOTE: the vendor states that this is the intended behavior: admins are supposed to be able to execute code in this manner.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Tribe29 Checkmk>=1.5.0<2.0.0
Tribe29 Checkmk=2.0.0
Tribe29 Checkmk=2.0.0-b1
Tribe29 Checkmk=2.0.0-b2
Tribe29 Checkmk=2.0.0-b3
Tribe29 Checkmk=2.0.0-b4
Tribe29 Checkmk=2.0.0-b5
Tribe29 Checkmk=2.0.0-b6
Tribe29 Checkmk=2.0.0-b7
Tribe29 Checkmk=2.0.0-b8
Tribe29 Checkmk=2.0.0-i1
Tribe29 Checkmk=2.0.0-p1
Tribe29 Checkmk=2.0.0-p10
Tribe29 Checkmk=2.0.0-p11
Tribe29 Checkmk=2.0.0-p12
Tribe29 Checkmk=2.0.0-p13
Tribe29 Checkmk=2.0.0-p14
Tribe29 Checkmk=2.0.0-p15
Tribe29 Checkmk=2.0.0-p16
Tribe29 Checkmk=2.0.0-p17
Tribe29 Checkmk=2.0.0-p2
Tribe29 Checkmk=2.0.0-p3
Tribe29 Checkmk=2.0.0-p4
Tribe29 Checkmk=2.0.0-p5
Tribe29 Checkmk=2.0.0-p6
Tribe29 Checkmk=2.0.0-p7
Tribe29 Checkmk=2.0.0-p8
Tribe29 Checkmk=2.0.0-p9
=2.0.0
=2.0.0-b1
=2.0.0-b2
=2.0.0-b3
=2.0.0-b4
=2.0.0-b5
=2.0.0-b6
=2.0.0-b7
=2.0.0-b8
=2.0.0-i1
=2.0.0-p1
=2.0.0-p10
=2.0.0-p11
=2.0.0-p12
=2.0.0-p13
=2.0.0-p14
=2.0.0-p15
=2.0.0-p16
=2.0.0-p17
=2.0.0-p2
=2.0.0-p3
=2.0.0-p4
=2.0.0-p5
=2.0.0-p6
=2.0.0-p7
=2.0.0-p8
=2.0.0-p9
>=1.5.0<2.0.0

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-40905?

    CVE-2021-40905 is a vulnerability that allows remote code execution in the web management console of CheckMK Enterprise Edition.

  • How severe is CVE-2021-40905?

    CVE-2021-40905 has a severity value of 8.8, which is considered high.

  • Which versions of CheckMK Enterprise Edition are affected by CVE-2021-40905?

    Versions 1.5.0 to 2.0.0p9 of CheckMK Enterprise Edition are affected by CVE-2021-40905.

  • What is the CWE ID of CVE-2021-40905?

    CVE-2021-40905 has a CWE ID of 434.

  • How can I fix CVE-2021-40905?

    To fix CVE-2021-40905, it is recommended to update CheckMK Enterprise Edition to a version that is not affected by the vulnerability.

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