Insufficient Access Control in Dell Driver Could Lead to Privilege Escalation
CVE-2021-21551

7.8HIGH

Key Information:

Vendor: Dell
Status: Dbutil
Vendor: CVE Published:; 4 May 2021

Badges

👾 Exploit Exists🟡 Public PoC🦅 CISA Reported

Summary

The dbutil_2_3.sys driver from Dell is susceptible to an insufficient access control issue that can be exploited by local authenticated users. This vulnerability can result in unauthorized privilege escalation, potential denial of service, or unauthorized information exposure. Users should ensure their systems are updated to mitigate the risks associated with this vulnerability.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions.

Affected Version(s)

dbutil 2.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

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