CVE-2020-12820
19.12.2024, 11:15
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.Enginsight
| Vendor | Product | Version |
|---|---|---|
| fortinet | fortios | 𝑥 < 5.6.13 |
| fortinet | fortios | 6.0.0 ≤ 𝑥 < 6.0.11 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration
- CWE-121 - Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CWE-787 - Out-of-bounds WriteThe software writes data past the end, or before the beginning, of the intended buffer.