Advisory Details

March 30th, 2017

(Pwn2Own) VMware Workstation Uninitialized Memory Information Disclosure Vulnerability

ZDI-17-238
ZDI-CAN-4631

CVE ID CVE-2017-4905
CVSS SCORE 4.9, (AV:L/AC:L/Au:N/C:C/I:N/A:N)
AFFECTED VENDORS VMware
AFFECTED PRODUCTS VMware Workstation
VULNERABILITY DETAILS


This vulnerability allows local attackers to disclose sensitive information on vulnerable installations of VMware Workstation. 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 handling of the Backdoor communications channel. 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 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:
http://www.vmware.com/security/advisories/VMSA-2017-0006.html
DISCLOSURE TIMELINE
  • 2017-03-18 - Vulnerability reported to vendor
  • 2017-03-30 - Coordinated public release of advisory
CREDIT Tencent Security - Team Sniper (Keen Lab and PC Mgr)
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