#VU80052 Exposed IOCTL with Insufficient Access Control in Windows kernel driver


Published: 2023-08-29

Vulnerability identifier: #VU80052

Vulnerability risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-35841

CWE-ID: CWE-782

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows kernel driver
Hardware solutions / Drivers

Vendor: Phoenix Technologies

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows kernel driver: All versions


External links
http://jvn.jp/en/vu/JVNVU93886750/index.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability