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    CVE-2019-20790

    OpenDMARC through 1.3.2 and 1.4.x, when used with pypolicyd-spf 2.0.2, allows attacks that bypass SPF and DMARC authentication in situations where the HELO field is inconsistent with the MAIL FROM field.

    Published:Apr 27, 2020
    Last Modified:Nov 21, 2024
    EPS:Apr 27, 2020
    EPSS Score:0.00226
    CVSS Score:9.8

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Pypolicyd-spf Project
    Product
    Pypolicyd-spf
    Vendor
    Trusteddomain
    Product
    Opendmarc

    Exploits

    https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816https://sourceforge.net/p/opendmarc/tickets/235/https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816https://sourceforge.net/p/opendmarc/tickets/235/

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    References

    https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/
    https://sourceforge.net/p/opendmarc/tickets/235/
    https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
    https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/
    https://sourceforge.net/p/opendmarc/tickets/235/
    https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf

    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