CVE-2020-12272
Last modified
CVE-2020-12272 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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 estimates a 2.14% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Trusteddomain | Opendmarc | >= 1.0.0, <= 1.3.2 |
| Trusteddomain | Opendmarc | 1.4.0 |
| Fedoraproject | Fedora | 33 |
| Fedoraproject | Fedora | 34 |
References
- https://sourceforge.net/p/opendmarc/tickets/237/Exploit, Third Party Advisory
- https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdfTechnical Description, Third Party Advisory
- https://sourceforge.net/p/opendmarc/tickets/237/Exploit, Third Party Advisory
- https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdfTechnical Description, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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