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.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 4.9 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N | 1.2 | 3.6 |
CVSS 2.0
Severity: MEDIUM
Problem Type: NVD-CWE-noinfo,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| mimecast | email_security | * |