FortiNAC - Weak authentication mechanism on device registration page

Summary

A weak authentication vulnerability [CWE-1390] in FortiNAC device registration page may allow an unauthenticated attacker to perform password spraying attacks with an increased chance of success.

Affected Products

At least
FortiNAC-F version 7.2.0
FortiNAC version 9.4.0 through 9.4.2
FortiNAC 9.2 all versions
FortiNAC 9.1 all versions
FortiNAC 8.8 all versions
FortiNAC 8.7 all versions

Solutions

Please upgrade to FortiNAC version 9.4.3 or above
Please upgrade to FortiNAC-F version 7.2.1 or above

Acknowledgement

Fortinet is pleased to thank KPN for bringing this issue to our attention under responsible disclosure.

Timeline

2023-04-13: Initial publication