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    CVE-2017-17560

    An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices. The web administration component, /web/jquery/uploader/multi_uploadify.php, provides multipart upload functionality that is accessible without authentication and can be used to place a file anywhere on the device's file system. This allows an attacker the ability to upload a PHP shell onto the device and obtain arbitrary code execution as root.

    Published:Dec 12, 2017
    Last Modified:Apr 20, 2025
    EPS:Dec 12, 2017
    EPSS Score:0.83376
    CVSS Score:9.8

    Affected Products

    Vendor
    Westerndigital
    Product
    My Cloud Pr4100
    Vendor
    Westerndigital
    Product
    My Cloud Pr4100 Firmware

    Exploits

    https://download.exploitee.rs/file/generic/Exploiteers-DEFCON25.pdfhttps://www.exploit-db.com/exploits/43356/https://download.exploitee.rs/file/generic/Exploiteers-DEFCON25.pdfhttps://www.exploit-db.com/exploits/43356/https://www.exploit-db.com/exploits/43356

    Common Weakness Enumeration

    CWE-287 Improper Authentication

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    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