PT-2017-16216 · Vmware · Vmware Esxi+2

Published 2017-12-20 · Updated 2022-02-03 · CVE-2017-4933

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions VMware ESXi versions 6.5 before ESXi650-201710401-BG VMware Workstation versions 12.x before 12.5.8 VMware Fusion versions 8.x before 8.5.9

Description The issue allows an authenticated VNC session to cause a heap overflow via a specific set of VNC packets, resulting in heap corruption. Successful exploitation could result in remote code execution in a virtual machine via the authenticated VNC session. Note that for exploitation to be possible in ESXi, VNC must be manually enabled in a virtual machine's .vmx configuration file, and ESXi must be configured to allow VNC traffic through the built-in firewall.

Recommendations For VMware ESXi versions 6.5 before ESXi650-201710401-BG, update to ESXi650-201710401-BG or later. For VMware Workstation versions 12.x before 12.5.8, update to version 12.5.8 or later. For VMware Fusion versions 8.x before 8.5.9, update to version 8.5.9 or later. As a temporary workaround, consider disabling VNC access to virtual machines until a patch is applied.

Exploit

Fix

RCE

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2017-4933

Affected Products

Vmware Esxi

Vmware Fusion

Vmware Workstation

References · 6

• 🔥 https://talosintelligence.com/reports/TALOS-2017-0368 · Exploit
• https://osv.dev/vulnerability/CVE-2017-4933 · Vendor Advisory
• https://vmware.com/security/advisories/VMSA-2017-0021.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-4933 · Security Note
• http://securitytracker.com/id/1040025 · Note
• http://securitytracker.com/id/1040024 · Note