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    CVE-2020-13998

    Citrix XenApp 6.5, when 2FA is enabled, allows a remote unauthenticated attacker to ascertain whether a user exists on the server, because the 2FA error page only occurs after a valid username is entered. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

    Published:Jun 11, 2020
    Last Modified:Nov 21, 2024
    EPS:Jun 11, 2020
    EPSS Score:0.01642
    CVSS Score:5.3

    Affected Products

    Vendor
    Citrix
    Product
    Xenapp

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-189 Black Box Reverse Engineering

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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