CVE-2026-18273: (Pwn2Own) Kenwood DNR1007XR USB Incorrect Default Permissions Local Privilege Escalation Vulnerability
Kenwood DNR1007XR USB Incorrect Default Permissions Local Privilege Escalation Vulnerability. This vulnerability allows physically present attackers to escalate privileges on affected installations of Kenwood DNR1007XR devices. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the configuration of the mount point for the USB filesystem. The issue results from incorrect permissions on a directory used by the product. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-29070.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Kenwood DNR1007XRto a version that resolves this vulnerability.Patch ZDI-CAN-29070 - Configuration
Fix incorrect default permissions on the directory used by the product by correcting the configuration of the mount point for the USB filesystem, ensuring the directory permissions are set correctly to prevent local privilege escalation.
Kenwood DNR1007XR USB filesystem mount point directory permissions = set correct permissions for the directory used by the product (avoid incorrect default permissions)
Event History
Frequently Asked Questions
Who can realistically exploit this issue?
Exploitation requires an attacker to be physically present at an affected device and already able to execute code with low privileges on the target system. The provided information does not indicate that it can be exploited remotely or without prior code execution.
What level of access can an attacker gain?
A successful attacker can escalate from low-privileged code execution to arbitrary code execution in the context of root. This can affect confidentiality, integrity, and availability of the device.
What component is responsible for the privilege escalation?
The issue is in the configuration of the USB filesystem mount point. Incorrect permissions on a directory used by the product enable the local privilege escalation.