medium5.4
CVE-2020-12820
Under non-default configuration, a stack-based buffer overflow in FortiOS version 6.0.10 and below, version 5.6.12 and below may allow a remote attacker authen…
Impact
Under non-default configuration, a stack-based buffer overflow in FortiOS version 6.0.10 and below, version 5.6.12 and below may allow a remote attacker authenticated to the SSL VPN to crash the FortiClient NAC daemon (fcnacd) and potentially execute arbitrary code via requesting a large FortiClient file name. We are not aware of proof of concept code successfully achieving the latter.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Fortinet | Fortios | before 5.6.13 from 6.0.0 before 6.0.11 |