Advisory Details

May 31st, 2024

(Pwn2Own) VMware Workstation hgfsVMCI_fileread Use of Uninitialized Variable Information Disclosure Vulnerability

CVE ID	CVE-2024-22270
CVSS SCORE	6.0, AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
AFFECTED VENDORS	VMware
AFFECTED PRODUCTS	Workstation
VULNERABILITY DETAILS	This vulnerability allows local attackers to disclose sensitive information on affected installations of VMware Workstation. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the hgfsVMCI_fileread function. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor.
ADDITIONAL DETAILS	VMware has issued an update to correct this vulnerability. More details can be found at: https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/24280
DISCLOSURE TIMELINE	2024-04-29 - Vulnerability reported to vendor 2024-05-31 - Coordinated public release of advisory 2024-07-01 - Advisory Updated
CREDIT	Gwangun Jung(@pr0ln) and Junoh Lee(@bbbig12) at Theori(@theori_io)

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