Vulnerability identifier: #VU52877

Vulnerability risk: Low

CVSSv3.1: 8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-21551

CWE-ID: CWE-284

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
DBUtil
Hardware solutions / Drivers

Vendor: Dell

Description

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

The vulnerability exists due to improper access restrictions within the Dell dbutil driver dbutil_2_3.sys. A local user can run a specially crafted program to execute arbitrary code on the system with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DBUtil: 2.3

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External links
http://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability

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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?

Yes. This vulnerability is being exploited in the wild.