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    CVE-2021-38155

    OpenStack Keystone 10.x through 16.x before 16.0.2, 17.x before 17.0.1, 18.x before 18.0.1, and 19.x before 19.0.1 allows information disclosure during account locking (related to PCI DSS features). By guessing the name of an account and failing to authenticate multiple times, any unauthenticated actor could both confirm the account exists and obtain that account's corresponding UUID, which might be leveraged for other unrelated attacks. All deployments enabling security_compliance.lockout_failure_attempts are affected.

    Published:Aug 6, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 6, 2021
    EPSS Score:0.00858
    CVSS Score:7.5

    Affected Products

    Vendor
    Openstack
    Product
    Keystone

    Exploits

    https://launchpad.net/bugs/1688137https://launchpad.net/bugs/1688137

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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