SB2023082904 - Exposed IOCTL with Insufficient Access Control in Phoenix Technologies Windows kernel driver
Published: August 29, 2023
Security Bulletin ID
SB2023082904
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Exposed IOCTL with Insufficient Access Control (CVE-ID: CVE-2023-35841)
CWE-ID: CWE-782 - Exposed IOCTL with Insufficient Access Control
CVSSv4: 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
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.
Remediation
Install update from vendor's website.