WatchGuard Firebox Single Sign-On Agent Protocol Authorization Bypass
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to forge communications to affected components. In the event an attacker has already gained network access, they could exploit this vulnerability to retrieve authenticated usernames and group memberships from the Single Sign-On Agent or send arbitrary account and group information to the Single Sign-On Agent for their host. This vulnerability cannot be used by an attacker to gain access to user credentials.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| WatchGuard | SSO Client | 12.0 – 12.7 | — | No fix listed | CNA |
| WatchGuard | SSO Client | 12.0 – 12.5.4 | — | No fix listed | CNA |
| WatchGuard | SSO Agent | 12.0 – 12.10.2 | — | No fix listed | CNA |
- SSO Client VendorWatchGuard Affected 12.0 – 12.7 Fixed in — No fix listed CNA
- SSO Client VendorWatchGuard Affected 12.0 – 12.5.4 Fixed in — No fix listed CNA
- SSO Agent VendorWatchGuard Affected 12.0 – 12.10.2 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:watchguard:authentication_gateway:*:*:*:*:*:*:*:* | up to 12.10.2 | Vulnerable | WatchGuard |
| cpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:macos:*:* | up to 12.5.4 | Vulnerable | WatchGuard |
| cpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:windows:*:* | up to 12.7 | Vulnerable | WatchGuard |
- cpe:2.3:a:watchguard:authentication_gateway:*:*:*:*:*:*:*:* Versions up to 12.10.2 Vulnerable ·WatchGuard
- cpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:macos:*:* Versions up to 12.5.4 Vulnerable ·WatchGuard
- cpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:windows:*:* Versions up to 12.7 Vulnerable ·WatchGuard
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-6592
- 2026-10-03 Alias added: GHSA-fgxf-657w-ggqj
References
More WatchGuard Authentication Gateway vulnerabilities
- TI-2024-06115 WatchGuard Firebox Single Sign-On Agent Management Interface Authentication Bypass CVSS 4.0CRITICAL 9.3
- TI-2026-63676 AuthPoint Gateway Improper Authentication in LDAP Sync Allows First-Factor Authentication Bypass CVSS 4.0HIGH 7.4
Sources
- CVE-2024-6592 · CVE Program
- CVE-2024-6592 · NVD
- FIRST EPSS
- GHSA-fgxf-657w-ggqj · 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