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    CVE-2021-3636

    It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.

    Published:Jul 14, 2021
    Last Modified:Nov 21, 2024
    EPS:Jul 30, 2021
    EPSS Score:0.00031
    CVSS Score:4.6

    Affected Products

    Vendor
    Redhat
    Product
    Openshift

    Exploits

    https://bugzilla.redhat.com/show_bug.cgi?id=1978621https://bugzilla.redhat.com/show_bug.cgi?id=1978621

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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