CVE-2021-24020

CVSS 7.5 HIGHEPSS 0.6%

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

09 Jul 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Fortinet · Fortinet FortiMail

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References

https://fortiguard.com/advisory/FG-IR-21-027