CVE-2025-34070
Published: 02 July 2025
Summary
CVE-2025-34070 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Gfi Kerio Control. Its CVSS base score is 10.0 (Critical).
Operationally, ranked in the top 18.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A missing authentication vulnerability affects the GFIAgent component of GFI Kerio Control 9.4.5. The service, which integrates with GFI AppManager, exposes unauthenticated HTTP endpoints on ports 7995 and 7996. The /proxy handler on port 7996 accepts an Appliance UUID obtainable from port 7995 and forwards requests to administrative interfaces, resulting in a full authentication bypass to sensitive APIs. The issue is tracked as CVE-2025-34070 with a CVSS 4.0 score of 10.0 and is classified under CWE-306.
Unauthenticated remote attackers can exploit the flaw over the network to perform privileged operations without credentials or user interaction. By chaining the UUID retrieval and proxy forwarding steps, an attacker gains access to administrative functionality that should require authentication.
Public advisories from SSD Disclosure and VulnCheck document the authentication bypass and related remote code execution potential in the affected product. The EPSS score remains at 0.0156 with no material increase observed since publication.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-19721
Vulnerability details
A missing authentication vulnerability in the GFIAgent component of GFI Kerio Control 9.4.5 allows unauthenticated remote attackers to perform privileged operations. The GFIAgent service, responsible for integration with GFI AppManager, exposes HTTP services on ports 7995 and 7996 without proper…
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authentication. The /proxy handler on port 7996 allows arbitrary forwarding to administrative endpoints when provided with an Appliance UUID, which itself can be retrieved from port 7995. This results in a complete authentication bypass, permitting access to sensitive administrative APIs.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Guarantees critical functions are protected by mandatory invocation of the access control mechanism.
Auditing sessions makes it possible to detect access to critical functions without required authentication.
The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.
Certification assesses that critical functions have required authentication controls in place.
Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.