What’s Vulnerable › Vulnerabilities
CVE-2020-12272
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-04-27 · updated 2026-06-17
- Weakness: CWE-290
Description
OpenDMARC through 1.3.2 and 1.4.x allows attacks that inject authentication results to provide false information about the domain that originated an e-mail message. This is caused by incorrect parsing and interpretation of SPF/DKIM authentication results, as demonstrated by the example.net(.example.com substring.
Affected products
- Fedoraproject Fedora: 33, 34
- Trusteddomain Opendmarc: from 1.0.0 through 1.3.2; 1.4.0, 1.4.0-beta0, 1.4.0-beta1
References
- https://lists.debian.org/debian-lts-announce/2023/08/msg00035.html
- 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/237/
- https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
- https://lists.debian.org/debian-lts-announce/2023/08/msg00035.html
- 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/237/
- https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
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