VMware ESXi/Workstation Pro/Player/Fusion Pro/Fusion SVGA memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.0	$0-$5k	0.00

A vulnerability, which was classified as very critical, was found in VMware ESXi, Workstation Pro, Player, Fusion Pro and Fusion (Virtualization Software). This affects an unknown function of the component SVGA. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

VMware ESXi 6.5 without patch ESXi650-201703410-SG, 6.0 U3 without patch ESXi600-201703401-SG, 6.0 U2 without patch ESXi600-201703403-SG, 6.0 U1 without patch ESXi600-201703402-SG, and 5.5 without patch ESXi550-201703401-SG; Workstation Pro / Player 12.x prior to 12.5.5; and Fusion Pro / Fusion 8.x prior to 8.5.6 have an uninitialized stack memory usage in SVGA. This issue may allow a guest to execute code on the host.

The bug was discovered 03/28/2017. The weakness was released 06/07/2017 by ZDI and Team 360 Security with Qihoo (Website). The advisory is shared at vmware.com. This vulnerability is uniquely identified as CVE-2017-4903 since 12/26/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/26/2020).

The vulnerability scanner Nessus provides a plugin with the ID 99103 (VMware Fusion 8.x < 8.5.6 Multiple Vulnerabilities (VMSA-2017-0006) (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370354 (VMware Workstation Pro, VMware Workstation Player and VMware Fusion Multiple Vulnerabilities. (VMSA-2017-0006)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 97160), SecurityTracker (ID 1038148) and Tenable (99103). Entries connected to this vulnerability are available at 102080, 102082 and 102083.

Productinfoedit

Type

Virtualization Software

Vendor

VMware

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 9.4
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2infoedit

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Exploitinginfoedit

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99103
Nessus Name: VMware Fusion 8.x < 8.5.6 Multiple Vulnerabilities (VMSA-2017-0006) (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 105038
OpenVAS Name: VMSA-2017-0006: VMware ESXi updates address critical and moderate security issues (remote check)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

12/26/2016 🔍
03/28/2017 +92 days 🔍
03/28/2017 +0 days 🔍
03/28/2017 +0 days 🔍
03/30/2017 +2 days 🔍
06/07/2017 +69 days 🔍
06/07/2017 +0 days 🔍
06/08/2017 +1 days 🔍
12/26/2020 +1297 days 🔍

Sourcesinfoedit

Vendor: https://www.vmware.com/

Advisory: vmware.com
Researcher: ZDI/Team 360 Security
Organization: Qihoo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-4903 (🔍)
SecurityFocus: 97160 - Multiple VMware Products CVE-2017-4903 Local Memory Corruption Vulnerability
SecurityTracker: 1038148

scip Labs: https://www.scip.ch/en/?labs.20060413
See also: 🔍

Entryinfoedit

Created: 06/08/2017 08:39 AM
Updated: 12/26/2020 01:06 PM
Changes: (1) advisory_person_name
Complete: 🔍