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    CVE-2024-21500

    All versions of the package github.com/greenpau/caddy-security are vulnerable to Improper Restriction of Excessive Authentication Attempts via the two-factor authentication (2FA). Although the application blocks the user after several failed attempts to provide 2FA codes, attackers can bypass this blocking mechanism by automating the application’s full multistep 2FA process.

    Published:Feb 17, 2024
    Last Modified:Apr 3, 2025
    EPS:Feb 17, 2024
    EPSS Score:0.00048
    CVSS Score:4.8

    Affected Products

    Vendor
    Authcrunch
    Product
    Caddy-security

    Exploits

    https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/

    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