CVE-2021-4406

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    CVE-2021-4406

    Published: 10 Jul 2023Last Modified: 10 Mar 2026

    Summary:

    Details: An authenticated attacker is able to create alerts that trigger a stored XSS attack. POC * go to the alert manager * open the ITSM tab * add a webhook with the URL/service token value ' -h && id | tee /tmp/ttttttddddssss #' (whitespaces are tab characters) * click add * click apply * create a test alert * The test alert will run the command “id | tee /tmp/ttttttddddssss” as root. * after the test alert inspect /tmp/ttttttddddssss it'll contain the ids of the root user.

    References: https://csirt.divd.nl/cves/CVE-2021-4406/, https://www.divd.nl/DIVD-2021-00020, https://www.osnexus.com/products/software-defined-storage, , https://csirt.divd.nl/DIVD-2021-00020/, https://csirt.divd.nl/CVE-2021-4406

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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-2021-4406 | CVE-DB