CVE-2022-39952
Published: 16 February 2023
Summary
CVE-2022-39952 is a critical-severity External Control of File Name or Path (CWE-73) vulnerability in Fortinet Fortinac. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-39952 is an external control of file name or path vulnerability affecting Fortinet FortiNAC versions 9.4.0, 9.2.0 through 9.2.5, 9.1.0 through 9.1.7, 8.8.0 through 8.8.11, 8.7.0 through 8.7.6, 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, and 8.3.7. The flaw is tracked under CWE-73 and CWE-668 and carries a CVSS 3.1 base score of 9.8.
An unauthenticated remote attacker can exploit the issue by sending a specially crafted HTTP request, resulting in execution of unauthorized code or commands on the affected appliance with no user interaction or privileges required.
The vendor advisory at https://fortiguard.com/psirt/FG-IR-22-300 addresses the issue and should be consulted for available patches and mitigation steps applicable to supported FortiNAC releases.
The associated EPSS score stands at 0.9378 with no material rise from a lower baseline, indicating sustained high exploitation interest since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-42396
Vulnerability details
A external control of file name or path in Fortinet FortiNAC versions 9.4.0, 9.2.0 through 9.2.5, 9.1.0 through 9.1.7, 8.8.0 through 8.8.11, 8.7.0 through 8.7.6, 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, 8.3.7 may allow an unauthenticated attacker to execute unauthorized…
more
code or commands via specifically crafted HTTP request.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Controls whether organization resources are exposed to external system spheres by permitting or prohibiting their use.
The control ensures information is not released into a security sphere where the recipient lacks matching access authorizations.
The control ensures information resources are not exposed to the incorrect (public) sphere through review and authorization.
Protects against data mining that would expose resources to unauthorized spheres by enforcing detection and controls.
Restricts information flows to ensure resources are not exposed to incorrect or unauthorized spheres.
Controlling internal connections prevents exposure of resources to unintended internal spheres.
Knowing exact processing and storage locations helps avoid exposure of resources to incorrect spheres.
The control prevents exposure of the media resource to the wrong security sphere.