CVE-2019-20790 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00226.

Key SSVC decision points have not yet been added.

Vendors	Products
Fedoraproject	Fedora
Pypolicyd-spf Project	Pypolicyd-spf
Trusteddomain	Opendmarc

Configuration 1 [-]

AND

cpe:2.3:a:trusteddomain:opendmarc:*:*:*:*:*:*:*:*

cpe:2.3:a:trusteddomain:opendmarc:1.4.0:*:*:*:*:*:*:*

cpe:2.3:a:pypolicyd-spf_project:pypolicyd-spf:2.0.2:*:*:*:*:*:*:*

Configuration 2 [-]

OR	cpe:2.3:o:fedoraproject:fedora:33:::::::*
	cpe:2.3:o:fedoraproject:fedora:34:::::::*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
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

History

Sat, 12 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00206}`	epss `{'score': 0.00226}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-04-27T14:00:46

Updated: 2024-08-05T02:53:09.236Z

Reserved: 2020-04-27T00:00:00

Link: CVE-2019-20790

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-04-27T14:15:11.127

Modified: 2024-11-21T04:39:22.287

Link: CVE-2019-20790

Redhat

No data.

OpenCVE Enrichment

No data.

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