SB2022080959 - Privilege escalation in Microsoft Windows Bluetooth Driver
Published: August 9, 2022 Updated: August 18, 2022
Security Bulletin ID
SB2022080959
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authorization (CVE-ID: CVE-2022-35820)
CWE-ID: CWE-285 - Improper Authorization
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper authorization logic within the bthport.sys driver when accessing registry keys. A local user can execute arbitrary code with SYSTEM privileges.
Remediation
Install update from vendor's website.