GFI Kerio Control GFIAgent Authentication Bypass via Proxy Forwarding

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.

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关键功能的认证机制缺失

GFI Kerio Control 安全漏洞

GFI Kerio Control是马耳他GFI公司的一套统一威胁管理（UTM）解决方案。该产品包括病毒防护、Web内容过滤和应用程序过滤等功能。 GFI Kerio Control 9.4.5版本存在安全漏洞，该漏洞源于认证绕过，可能导致权限提升。

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