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    CVE-2020-16844

    In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.

    Published:Aug 11, 2020
    Last Modified:Nov 21, 2024
    EPS:Oct 1, 2020
    EPSS Score:0.00284
    CVSS Score:6.8

    Affected Products

    Vendor
    Istio
    Product
    Istio
    Vendor
    Redhat
    Product
    Service Mesh

    Exploits

    https://istio.io/latest/news/security/istio-security-2020-009/https://istio.io/latest/news/security/istio-security-2020-009/

    Common Weakness Enumeration

    CWE-284 Improper Access Control

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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