Advisory Details

June 12th, 2024

(Pwn2Own) Microsoft Windows win32kfull Improper Input Validation Local Privilege Escalation Vulnerability

ZDI-24-605
ZDI-CAN-23774

CVE ID CVE-2024-30087
CVSS SCORE 8.8, AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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 low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the win32kfull driver. The issue results from the lack of proper input validation. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

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-2024-30087
DISCLOSURE TIMELINE
  • 2024-04-24 - Vulnerability reported to vendor
  • 2024-06-12 - Coordinated public release of advisory
  • 2024-07-01 - Advisory Updated
CREDIT Marcin Wiazowski
BACK TO ADVISORIES