fortinet fortimail CVE-2021-24020 is a vulnerability in Fortinet Fortimail
Published on July 9, 2021

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.

NVD

Vulnerability Analysis

CVE-2021-24020 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Products Associated with CVE-2021-24020

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Fortinet Fortimail
 

Affected Versions

Fortinet FortiMail Version FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 is affected by CVE-2021-24020

Exploit Probability

EPSS
0.17%
Percentile
38.32%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.