Exposed IOCTL with Insufficient Access Control in Windows kernel driver - CVE-2023-35841

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Main Vulnerability Database Vulnerabilities #VU80052

Exposed IOCTL with Insufficient Access Control in Windows kernel driver - CVE-2023-35841

Published: August 29, 2023


Vulnerability identifier: #VU80052
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-35841
CWE-ID: CWE-782
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Phoenix Technologies
Affected software:
Windows kernel driver

Detailed vulnerability description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to insufficient access control in the IOCTL within the driver file "TdkLib64.sys". A local user can send a specially crafted IOCTL request and perform I/O to any hardware port or physical address, resulting in erasing or altering of the firmware.


How to mitigate CVE-2023-35841

Install updates from vendor's website.

Sources