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Status published
Critical
CVE-2019-20790
OpenDMARC through 1.3.2 and 1.4.x, when used with pypolicyd-spf 2.0.2,...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
- 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/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/
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Affected Vendor
trusteddomain
View all reports →Affected Software
opendmarc, pypolicyd-spf, fedora
Vulnerable Versions:
1.3.0, 1.4.0, 2.0.2, 33, 34
Timeline
Official Publish:
April 27th, 2020
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.