A remote code execution vulnerability in GFI Kerio Control 9.4.5 allows attackers with administrative access to upload and execute arbitrary code through the firmware upgrade feature. The system upgrade mechanism accepts unsigned .img files, which can be modified to include malicious scripts within the upgrade.sh or disk image components. These modified upgrade images are not validated for authenticity or integrity, and are executed by the system post-upload, enabling root access.
History

Wed, 02 Jul 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 02 Jul 2025 14:00:00 +0000

Type Values Removed Values Added
Description A remote code execution vulnerability in GFI Kerio Control 9.4.5 allows attackers with administrative access to upload and execute arbitrary code through the firmware upgrade feature. The system upgrade mechanism accepts unsigned .img files, which can be modified to include malicious scripts within the upgrade.sh or disk image components. These modified upgrade images are not validated for authenticity or integrity, and are executed by the system post-upload, enabling root access.
Title GFI Kerio Control Unsigned System Image Upload Root Code Execution
Weaknesses CWE-306
References
Metrics cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2025-07-02T13:45:11.305Z

Updated: 2025-07-03T03:55:33.562Z

Reserved: 2025-04-15T19:15:22.550Z

Link: CVE-2025-34071

cve-icon Vulnrichment

Updated: 2025-07-02T20:28:33.158Z

cve-icon NVD

Status : Received

Published: 2025-07-02T14:15:24.667

Modified: 2025-07-02T14:15:24.667

Link: CVE-2025-34071

cve-icon Redhat

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