CVE-2021-40905

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    CVE-2021-40905

    Published: 25 Mar 2022Last Modified: 10 Jul 2026

    Summary:

    Details: 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.

    References: https://docs.checkmk.com/latest/en/mkps.html, https://github.com/Edgarloyola/CVE-2021-40905

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- a08e390df0ae711bbee6fbdd0d32da1452918ae3
    Fixed -None

    Affected versions

    2.0.0-NA
    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-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-p9

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-40905 | CVE-DB