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    CVE-2021-41110

    cwlviewer is a web application to view and share Common Workflow Language workflows. Versions prior to 1.3.1 contain a Deserialization of Untrusted Data vulnerability. Commit number f6066f09edb70033a2ce80200e9fa9e70a5c29de (dated 2021-09-30) contains a patch. There are no available workarounds aside from installing the patch. The SnakeYaml constructor, by default, allows any data to be parsed. To fix the issue the object needs to be created with a `SafeConstructor` object, as seen in the patch.

    Published:Oct 1, 2021
    Last Modified:Nov 21, 2024
    EPS:Oct 1, 2021
    EPSS Score:0.00609
    CVSS Score:9.1

    Affected Products

    Vendor
    Commonwl
    Product
    Cwlviewer

    Exploits

    https://www.fatalerrors.org/a/analysis-of-the-snakeyaml-deserialization-in-java-security.htmlhttps://www.fatalerrors.org/a/analysis-of-the-snakeyaml-deserialization-in-java-security.html

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    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