CVE-2021-24020
High
Description
A missing cryptographic step in the implementation of the hash digest algorithm in FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to tamper with signed URLs by appending further data which allows bypass of signature verification.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Fortinet Fortimail
PublishedJul 9, 2021
First seenJul 9, 2021
How to fix
Update
- fortinet fortimail6.4.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fortinet fortimail | 6.2.0 ≤ v ≤ 6.2.7, 6.4.0 ≤ v < 6.4.5 | 6.4.5 |
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