Vulnerability · Published Jul 9, 2021 · Assigned by fortinet
CVE-2021-24020
High 7.5
In plain English
A high-severity security flaw in Fortinet FortiMail from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 50.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortinet FortiMail | FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 |
References
- https://fortiguard.com/advisory/FG-IR-21-027 x_refsource_CONFIRM