UBUNTU-CVE-2021-28940

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    UBUNTU-CVE-2021-28940

    Published: 2 Apr 2021Last Modified: 24 Oct 2025
    Upstream:
    CVE-2021-28940

    Summary:

    Details: Because of a incorrect escaped exec command in MagpieRSS in 0.72 in the /extlib/Snoopy.class.inc file, it is possible to add a extra command to the curl binary. This creates an issue on the /scripts/magpie_debug.php and /scripts/magpie_simple.php page that if you send a specific https url in the RSS URL field, you are able to execute arbitrary commands.

    References: https://ubuntu.com/security/CVE-2021-28940, https://github.com/kellan/magpierss/blob/04d2a88b97fdba5813d01dc0d56c772d97360bb5/extlib/Snoopy.class.inc#L660, https://pastebin.com/kpzHKKJu, https://www.cve.org/CVERecord?id=CVE-2021-28940

    Affected packages

    Package

    Name: magpierss

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.72-10

    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
    UBUNTU-CVE-2021-28940 | CVE-DB