PSIRTOut-of-bound Write in sslvpnd
Summary
A out-of-bounds write vulnerability [CWE-787] in FortiOS and FortiProxy may allow a remote unauthenticated attacker to execute arbitrary code or command via specially crafted HTTP requests.
Workaround : disable SSL VPN (disable webmode is NOT a valid workaround)
Note: This is potentially being exploited in the wild.
| Version | Affected | Solution |
|---|---|---|
| FortiOS 7.4 | 7.4.0 through 7.4.2 | Upgrade to 7.4.3 or above |
| FortiOS 7.2 | 7.2.0 through 7.2.6 | Upgrade to 7.2.7 or above |
| FortiOS 7.0 | 7.0.0 through 7.0.13 | Upgrade to 7.0.14 or above |
| FortiOS 6.4 | 6.4.0 through 6.4.14 | Upgrade to 6.4.15 or above |
| FortiOS 6.2 | 6.2.0 through 6.2.15 | Upgrade to 6.2.16 or above |
| FortiOS 6.0 | 6.0.0 through 6.0.17 | Upgrade to 6.0.18 or above |
| FortiProxy 7.4 | 7.4.0 through 7.4.2 | Upgrade to 7.4.3 or above |
| FortiProxy 7.2 | 7.2.0 through 7.2.8 | Upgrade to 7.2.9 or above |
| FortiProxy 7.0 | 7.0.0 through 7.0.14 | Upgrade to 7.0.15 or above |
| FortiProxy 2.0 | 2.0.0 through 2.0.13 | Upgrade to 2.0.14 or above |
| FortiProxy 1.2 | 1.2 all versions | Migrate to a fixed release |
| FortiProxy 1.1 | 1.1 all versions | Migrate to a fixed release |
| FortiProxy 1.0 | 1.0 all versions | Migrate to a fixed release |
Timeline
2024-02-08: Initial publication
2024-02-23: Added other fixed versions