Vulnerability in Trusteddomain Opendmarc
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.
EPSS: 0.021 (80.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Trusteddomain Opendmarc — versions 1.4.0
- Fedoraproject Fedora — versions 33, 34
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Technical Description, Third Party Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (mailing-list)
Frequently asked questions
- What is CVE-2020-12272?
- CVE-2020-12272 is a medium-severity vulnerability in Trusteddomain Opendmarc, classified under Authentication Bypass by Spoofing. CVSS score: 5.3/10. Published 2020-04-27.
- How severe is CVE-2020-12272?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-12272 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.