PSIRTLogin mechanism without rate limitation
Summary
An improper restriction of excessive authentication attempts vulnerability [CWE-307] in FortiMail webmail may allow an unauthenticated attacker to perform a brute force attack on the affected endpoints via repeated login attempts.
| Version | Affected | Solution |
|---|---|---|
| FortiMail 7.4 | 7.4.0 | Upgrade to 7.4.1 or above |
| FortiMail 7.2 | 7.2.0 through 7.2.4 | Upgrade to 7.2.5 or above |
| FortiMail 7.0 | 7.0.0 through 7.0.6 | Upgrade to 7.0.7 or above |
| FortiMail 6.4 | 6.4.0 through 6.4.8 | Upgrade to 6.4.9 or above |
| FortiMail 6.2 | 6.2 all versions | Migrate to a fixed release |
Acknowledgement
Fortinet is pleased to thank the customer who reported this vulnerability under responsible disclosure.Timeline
2023-11-13: Initial publication