CVE-2025-34069
GFI Kerio Control GFIAgent Authentication Bypass via Proxy Forwarding
Severity Score
9.5
*CVSS v4
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
*Credits:
z3er01 of zeronvll, SSD Secure Disclosure
CVSS Scores
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
System
Vulnerable | Subsequent
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2025-04-15 CVE Reserved
- 2025-07-02 CVE Published
- 2025-07-02 CVE Updated
- 2025-07-02 First Exploit
- ---------- EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-306: Missing Authentication for Critical Function
CAPEC
- CAPEC-115: Authentication Bypass
- CAPEC-137: Parameter Injection
References (2)
| URL | Tag | Source |
|---|---|---|
| https://vulncheck.com/advisories/gfi-kerio-control-auth-bypass-rce | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://ssd-disclosure.com/ssd-advisory-kerio-control-authentication-bypass-and-rce | 2025-07-02 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| GFI Software Search vendor "GFI Software" | Kerio Control Search vendor "GFI Software" for product "Kerio Control" | 9.4.5 Search vendor "GFI Software" for product "Kerio Control" and version "9.4.5" | en |
Affected
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