Actively exploited · Published Jan 2, 2023 · Assigned by fortinet
CVE-2022-42475
Critical 9.3 Exploited Ransomware
In plain English
A critical-severity security flaw in FortiOS from Fortinet. Attackers are actively exploiting it in the wild (listed by CISA on December 13, 2022). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 99.5% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Jan 3, 2023.
Official description
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | FortiProxy | 7.2.0 – through 7.2.17.0.0 – through 7.0.72.0.0 – through 2.0.111.2.0 – through 1.2.131.1.0 – through 1.1.61.0.0 – through 1.0.7 |
| Fortinet | FortiOS | 7.2.0 – through 7.2.27.0.0 – through 7.0.86.4.0 – through 6.4.106.2.0 – through 6.2.116.0.0 – through 6.0.155.6.0 – through 5.6.145.4.0 – through 5.4.135.2.0 – through 5.2.15 |
Weakness: CWE-197 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C