VMware Workstation/Fusion Unity access control

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in VMware Workstation and Fusion. Affected by this issue is some unknown functionality of the component Unity. This manipulation causes access control. The identification of this vulnerability is CVE-2017-4945. The attack can only be executed locally. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in VMware Workstation and Fusion (Virtualization Software) (the affected version is unknown). It has been declared as critical. Affected by this vulnerability is an unknown code of the component Unity. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

VMware Workstation (14.x and 12.x) and Fusion (10.x and 8.x) contain a guest access control vulnerability. This issue may allow program execution via Unity on locked Windows VMs. VMware Tools must be updated to 10.2.0 for each VM to resolve CVE-2017-4945. VMware Tools 10.2.0 is consumed by Workstation 14.1.0 and Fusion 10.1.0 by default.

The bug was discovered 01/04/2018. The weakness was shared 01/05/2018 by Martin with McAfee (Website). The advisory is shared at securitytracker.com. This vulnerability is known as CVE-2017-4945 since 12/26/2016. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 105788 (VMware Tools 10.x < 10.2.0 Multiple Vulnerabilities (VMSA-2018-0003)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370713 (VMware Security Advisories Multiple Vulnerabilities (VMSA-2018-0003)).

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 Tenable (105788) and SecurityFocus (BID 102441†). The entries VDB-111410 and VDB-111411 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105788
Nessus Name: VMware Tools 10.x < 10.2.0 Multiple Vulnerabilities (VMSA-2018-0003)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/26/2016 🔍
01/04/2018 +374 days 🔍
01/04/2018 +0 days 🔍
01/04/2018 +0 days 🔍
01/05/2018 +1 days 🔍
01/05/2018 +0 days 🔍
01/06/2018 +1 days 🔍
01/13/2018 +7 days 🔍
01/28/2021 +1111 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: securitytracker.com⛔
Researcher: Martin Lemay, Yakun Zhang (Martin)
Organization: McAfee
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-4945 (🔍)
GCVE (CVE): GCVE-0-2017-4945
GCVE (VulDB): GCVE-100-111409
SecurityFocus: 102441 - Multiple VMware Products Multiple Security Vulnerabilities
SecurityTracker: 1040109

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

Entryinfo

Created: 01/06/2018 17:15
Updated: 01/28/2021 17:39
Changes: 01/06/2018 17:15 (70), 12/19/2019 20:44 (5), 01/28/2021 17:35 (2), 01/28/2021 17:39 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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