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    Dashboard / CVE / CVE-2019-14657

    CVE-2019-14657

    Yealink phones through 2019-08-04 have an issue with OpenVPN file upload. They execute tar as root to extract files, but do not validate the extraction directory. Creating a tar file with ../../../../ allows replacement of almost any file on a phone. This leads to password replacement and arbitrary code execution as root.

    Published:Oct 8, 2019
    Last Modified:Nov 21, 2024
    EPS:Oct 8, 2019
    EPSS Score:0.01922
    CVSS Score:8.8

    Affected Products

    Vendor
    Yeahlink
    Product
    T49g
    Vendor
    Yeahlink
    Product
    T49g Firmware
    Vendor
    Yeahlink
    Product
    T58v
    Vendor
    Yeahlink
    Product
    T58v Firmware
    Vendor
    Yeahlink
    Product
    Vp59
    Vendor
    Yeahlink
    Product
    Vp59 Firmware

    Exploits

    http://cerebusforensics.com/yealink/exploit.htmlhttps://sway.office.com/3pCb559LYVuT0eighttp://cerebusforensics.com/yealink/exploit.htmlhttps://sway.office.com/3pCb559LYVuT0eig

    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