QID 375541

QID 375541: Dell Client Platform Security Update for Insufficient Access Control Vulnerability (DSA-2021-088)

Dell Client Platform is affected by an Insufficient Access Control Vulnerability in the Dell dbutil Driver. The vulnerability exists in the dbutil_2_3.sys driver which is installed on Dell Windows machines.

Affected Products
The vulnerable driver dbutil_2_3.sys was delivered to impacted systems in two ways: 1 via affected firmware update utility packages, and 2 via Dell Command Update, Dell Update, Alienware Update, Dell System Inventory Agent, or Dell Platform Tags

Successful exploitation of the vulnerability will allow escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Customers are advised to refer to advisory DSA-2021-088 and apply the required patched to remediate the vulnerability.

    Workaround:
    Manually remove the dbutil_2_3.sys driver, following locations need to checks for the presence of the file
    - C:\Users\username\AppData\Local\Temp
    - C:\Windows\Temp

    Vendor References

    CVEs related to QID 375541

    CVE-2021-21551 |
    Software Advisories
    Advisory ID Software Component Link
    DSA-2021-088 URL Logo www.dell.com/support/kbdoc/en-in/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability
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