GHSA-v5rv-hpxg-8x49

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    GHSA-v5rv-hpxg-8x49

    Published: 13 Jan 2021Last Modified: 2 Dec 2024

    Summary: Signature validation bypass in ServiceStack

    Details: ServiceStack before 5.9.2 mishandles JWT signature verification unless an application has a custom ValidateToken function that establishes a valid minimum length for a signature.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-28042, https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee, https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850, https://snyk.io/vuln/SNYK-DOTNET-SERVICESTACK-1035519, https://www.nuget.org/packages/ServiceStack, https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass, https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack

    Affected packages

    Package

    Name: ServiceStack

    Purl: pkg:nuget/ServiceStack

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.9.2

    Affected versions

    2.2.2

    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
    GHSA-v5rv-hpxg-8x49 | CVE-DB