Description
An authentication bypass vulnerability exists in GFI Kerio Control 9.4.5 due to insecure default proxy configuration and weak access control in the GFIAgent service. The non-transparent proxy on TCP port 3128 can be used to forward unauthenticated requests to internal services such as GFIAgent, bypassing firewall restrictions and exposing internal management endpoints. This enables unauthenticated attackers to access the GFIAgent service on ports 7995 and 7996, retrieve the appliance UUID, and issue administrative requests via the proxy. Exploitation results in full administrative access to the Kerio Control appliance.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GFI Software | Kerio Control | 9.4.5 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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cppghoul/CVE-2025-34069 ★ 1 · Oct 6, 2026
Kerio Control 9.4.5 Auth Bypass PoC
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce/ third-party-advisory technical-description exploit
- https://vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rce third-party-advisory