CVE-2019-20790 (NVD)

2020-04-27

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.

Products Fedora, Pypolicyd\-Spf, Opendmarc
Type Authentication Bypass by Spoofing (CWE-290)
First patch - None (likely due to unavailable code)
Links • https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/
• https://sourceforge.net/p/opendmarc/tickets/235/
• https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/