Related Vulnerabilities: CVE-2020-12272  

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.

Severity Medium

Remote Yes

Type Content spoofing

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.

AVG-1375 opendmarc 1.3.3-2 Medium Vulnerable

https://sourceforge.net/p/opendmarc/tickets/237/
https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf