#VU54600 Exposed IOCTL with Insufficient Access Control in Advanced SystemCare Ultimate - CVE-2021-21787

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Main Vulnerability Database Vulnerabilities #VU54600

#VU54600 Exposed IOCTL with Insufficient Access Control in Advanced SystemCare Ultimate - CVE-2021-21787

Published: July 8, 2021


Vulnerability identifier: #VU54600
Vulnerability risk: Low
CVSSv4.0: 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
CVE-ID: CVE-2021-21787
CWE-ID: CWE-782
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Advanced SystemCare Ultimate
Software vendor:
IObit

Description

The vulnerability allows a local user to gain elevated privileges on the system.

The vulnerability exists the way IOBit Advanced SystemCare Ultimate driver handles Privileged I/O write requests within OUT byte. A local user can use a specially crafted I/O request packet (IRP) and escalate privileges.


Remediation

Install updates from vendor's website.

External links