Advisory Details

October 14th, 2022

Microsoft Windows User-Mode Print Driver Insufficient Message Authentication Local Privilege Escalation Vulnerability

ZDI-22-1409
ZDI-CAN-17358

CVE ID CVE-2022-37986
CVSS SCORE 5.3, (AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Windows
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute code at low integrity on the target system in order to exploit this vulnerability.

The specific flaw exists within the user-mode print driver host process. The issue results from insufficient validation of the origin of commands. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the current user at medium integrity.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-37986
DISCLOSURE TIMELINE
  • 2022-06-28 - Vulnerability reported to vendor
  • 2022-10-14 - Coordinated public release of advisory
CREDIT Marcin Wiazowski
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