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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- fortinet / Fortinet FortiMailFortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 – FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7