CVE-2020-12272
MEDIUMOpenDMARC < 1.3.2 - Authentication Bypass by Spoofing via SPF/DKIM Parsing
Title source: llmDescription
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.
References (5)
Core 5
Core References
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2023/08/msg00035.html
Exploit, Third Party Advisory
https://sourceforge.net/p/opendmarc/tickets/237/
Technical Description, Third Party Advisory
https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
Scores
CVSS v3
5.3
EPSS
0.0214
EPSS Percentile
79.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Details
CWE
CWE-290
Status
published
Products (4)
fedoraproject/fedora
33
fedoraproject/fedora
34
trusteddomain/opendmarc
1.4.0 (3 CPE variants)
trusteddomain/opendmarc
1.0.0 - 1.3.2
Published
Apr 27, 2020
Tracked Since
Feb 18, 2026