CVEvulnerability
CVE-2019-20790
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-04-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-290
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.
Affected configurations
• trusteddomain opendmarc (>= 1.3.0 <= 1.3.2)
• trusteddomain opendmarc 1.4.0
• pypolicyd-spf project pypolicyd-spf 2.0.2
• fedoraproject fedora 33
• fedoraproject fedora 34
Related
Weakness · CWE (1)
- CWE-290 Authentication Bypass by Spoofing weakness
References
- https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816 Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/ lists.fedoraproject.org
- https://sourceforge.net/p/opendmarc/tickets/235/ Exploit, Third Party Advisory
- https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf Technical Description, Third Party Advisory
- https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816 Exploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/ lists.fedoraproject.org
- https://sourceforge.net/p/opendmarc/tickets/235/ Exploit, Third Party Advisory
- https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf Technical Description, Third Party Advisory