Some cryptographic issues in Fortinet FortiNAC versions 9.4.0 through 9.4.1, 9.2.0 through…
CVE-2022-40675 is a high-severity vulnerability in FortiNAC from Fortinet, with a CVSS 3.1 base score of 7.4 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected FortiNAC versions: 9.4.0 through 9.4.1; 9.2.0 through 9.2.7; 9.1.0 through 9.1.8, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.39% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Fortinac-f to 7.2.0 or a later version.
- Read the advisory on fortiguard.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Fortinet | FortiNAC | 9.4.0 through 9.4.1; 9.2.0 through 9.2.7; 9.1.0 through 9.1.8; 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 | Not stated |
| Fortinet | Fortinac-f | before 7.2.0 | 7.2.0 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 6.5 | Medium | CNA (fortinet.com) |
| CVSS 3.1 | 7.4 | High | NVD |
Official description
Some cryptographic issues in Fortinet FortiNAC versions 9.4.0 through 9.4.1, 9.2.0 through 9.2.7, 9.1.0 through 9.1.8, 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 attacker to decrypt and forge protocol communication messages.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in FortiNAC
- 9.0 Critical severity
- 9.8 Critical severity
- 7.5 High severity
- 7.2 High severity
- 7.8 High severity
- 9.0 Critical severity
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