PSIRTFortiOS & FortiProxy VM - Bypass of root file system integrity checks at boot time on VM
Summary
An improper validation of integrity check value vulnerability [CWE-354] in FortiOS and FortiProxy VMs may allow a local attacker with admin privileges to boot a malicious image on the device and bypass the filesytem integrity check in place.
| Version | Affected | Solution |
|---|---|---|
| FortiOS 7.4 | Not affected | Upgrade to 7.4.0 or above |
| FortiOS 7.2 | 7.2.0 through 7.2.3 | Upgrade to 7.2.4 or above |
| FortiOS 7.0 | 7.0.0 through 7.0.12 | Upgrade to 7.0.13 or above |
| FortiOS 6.4 | 6.4 all versions | Migrate to a fixed release |
| FortiOS 6.2 | 6.2 all versions | Migrate to a fixed release |
| FortiOS 6.0 | 6.0 all versions | Migrate to a fixed release |
| FortiProxy 7.4 | Not affected | Upgrade to 7.4.0 or above |
| FortiProxy 7.2 | 7.2 all versions | Migrate to a fixed release |
| FortiProxy 7.0 | 7.0 all versions | Migrate to a fixed release |
| FortiProxy 2.0 | 2.0 all versions | Migrate to a fixed release |
Acknowledgement
Fortinet is pleased to thank Michael Anastasakis, Grégoire Lodi and Rustam Komildzhonov from Klarna for reporting this vulnerability under responsible disclosure.Timeline
2023-11-02: Initial publication