PSIRTIPsec dynamic assignation IP spoofing
Summary
An origin validation error [CWE-346] vulnerability in FortiOS IPSec VPN may allow an authenticated IPSec VPN user with dynamic IP addressing to send (but not receive) packets spoofing the IP of another user via crafted network packets.
| Version | Affected | Solution |
|---|---|---|
| FortiOS 7.6 | Not affected | Not Applicable |
| FortiOS 7.4 | 7.4.0 through 7.4.1 | Upgrade to 7.4.2 or above |
| FortiOS 7.2 | 7.2 all versions | Migrate to a fixed release |
| FortiOS 7.0 | 7.0 all versions | Migrate to a fixed release |
| FortiOS 6.4 | 6.4 all versions | Migrate to a fixed release |
| FortiOS 6.2 | 6.2 all versions | Migrate to a fixed release |
FortiSASE: Issue resolved Q1/24
Workaround:
Use interface-based IPsec with set net-device enable.
Note that there might be performance impacts.