Information disclosure in Fortinet FortiAuthenticator
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
A exposure of sensitive information to an unauthorized actor in Fortinet FortiAuthenticator version 6.4.0, version 6.3.2 and below, version 6.2.1 and below, version 6.1.2 and below, version 6.0.7 to 6.0.1 allows attacker to duplicate a target LDAP user 2 factors authentication token via crafted HTTP requests.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Fortinet | Fortinet FortiAuthenticator | FortiAuthenticator 6.4.0, 6.3.2, 6.3.1, 6.3.0, 6.2.1, 6.2.0, 6.1.2, 6.1.1, 6.1.0, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1 | — | No fix listed | CNA |
- Fortinet FortiAuthenticator VendorFortinet Affected FortiAuthenticator 6.4.0, 6.3.2, 6.3.1, 6.3.0, 6.2.1, 6.2.0, 6.1.2, 6.1.1, 6.1.0, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:* | 6.0.1 – 6.0.7 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.1.0:*:*:*:*:*:*:* | 6.1.0 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.1.1:*:*:*:*:*:*:* | 6.1.1 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.1.2:*:*:*:*:*:*:* | 6.1.2 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.2.0:*:*:*:*:*:*:* | 6.2.0 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.2.1:*:*:*:*:*:*:* | 6.2.1 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.3.0:*:*:*:*:*:*:* | 6.3.0 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.3.1:*:*:*:*:*:*:* | 6.3.1 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.3.2:*:*:*:*:*:*:* | 6.3.2 | Vulnerable | Fortinet |
| cpe:2.3:a:fortinet:fortiauthenticator:6.4.0:*:*:*:*:*:*:* | 6.4.0 | Vulnerable | Fortinet |
- cpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:* Versions 6.0.1 – 6.0.7 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.1.0:*:*:*:*:*:*:* Versions 6.1.0 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.1.1:*:*:*:*:*:*:* Versions 6.1.1 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.1.2:*:*:*:*:*:*:* Versions 6.1.2 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.2.1:*:*:*:*:*:*:* Versions 6.2.1 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.3.0:*:*:*:*:*:*:* Versions 6.3.0 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.3.1:*:*:*:*:*:*:* Versions 6.3.1 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.3.2:*:*:*:*:*:*:* Versions 6.3.2 Vulnerable ·Fortinet
- cpe:2.3:a:fortinet:fortiauthenticator:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 Vulnerable ·Fortinet
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-43067
- 2026-10-03 Alias added: GHSA-pxph-w77w-wjcr
References
More Fortinet Fortiauthenticator vulnerabilities
- TI-2026-32249 Improper access control in Fortinet FortiAuthenticator CVSS 3.1CRITICAL 9.1
- TI-2021-08066 OS command injection in Fortinet FortiAuthenticator CVSS 3.1HIGH 8.8
- TI-2021-05114 Uncontrolled resource consumption in Fortinet FortiSandbox, FortiAuthenticator CVSS 3.1HIGH 7.5
- TI-2013-05746 FortiGuard FortiAuthenticator before 3.0 allows remote administrators to gain privileges via the command line interface. CVSS 2.0HIGH 9.0
- TI-2015-01319 Fortinet FortiAuthenticator 3.0.0 has a password of (1) slony for the slony PostgreSQL… CVSS 2.0HIGH 7.5
- TI-2025-33341 Out-of-bounds read in Fortinet FortiAuthenticator CVSS 3.1HIGH 7.0
Sources
- CVE-2021-43067 · CVE Program
- CVE-2021-43067 · NVD
- FIRST EPSS
- GHSA-pxph-w77w-wjcr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences