VulnerabilityModified
CVE-2020-36519
Mimecast Email Security before 2020-01-10 allows any admin to spoof any domain, and pass DMARC alignment via SPF.
MEDIUM 4.9EPSS 0.81%
Does this matter?
Lower severity and a low EPSS score (0.81%). Track it; it rarely justifies an emergency change on its own.
Description
Mimecast Email Security before 2020-01-10 allows any admin to spoof any domain, and pass DMARC alignment via SPF. This occurs through misuse of the address rewrite feature. (The domain being spoofed must be a customer in the Mimecast grid from which the spoofing occurs.)
- CVSS 3.1
- 4.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.81% probability · 55th percentile
- CISA KEV
- Not listed
- Affected
- mimecast/email security
- Source
- cve@mitre.org
References
- https://wesleyk.me/2020/01/10/my-first-vulnerability-mimecast-sender-address-verification/Exploit, Third Party Advisory
- https://wesleyk.me/2020/01/10/my-first-vulnerability-mimecast-sender-address-verification/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.