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    CVE-2020-27838

    A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL later. The highest threat from this vulnerability is to data confidentiality.

    Published:Dec 11, 2020
    Last Modified:Nov 21, 2024
    EPS:Mar 8, 2021
    EPSS Score:0.89101
    CVSS Score:6.5

    Affected Products

    Vendor
    Redhat
    Product
    Keycloak
    Vendor
    Redhat
    Product
    Single Sign-on

    Exploits

    https://github.com/Cappricio-Securities/CVE-2020-27838

    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