VDB-157071 · CVE-2020-3972 · GCVE-0-2020-3972

VMware Tools up to 11.1.0 on macOS HGFS input validation

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.
3.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in VMware Tools up to 11.1.0 on macOS. It has been classified as problematic. This affects an unknown part of the component HGFS Handler. Performing a manipulation results in input validation. This vulnerability is identified as CVE-2020-3972. The attack is only possible with local access. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in VMware Tools up to 11.1.0 on macOS. This affects an unknown code block of the component HGFS Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

VMware Tools for macOS (11.x.x and prior before 11.1.1) contains a denial-of-service vulnerability in the Host-Guest File System (HGFS) implementation. Successful exploitation of this issue may allow attackers with non-admin privileges on guest macOS virtual machines to create a denial-of-service condition on their own VMs.

The weakness was released 06/19/2020 (Website). It is possible to read the advisory at vmware.com. This vulnerability is uniquely identified as CVE-2020-3972 since 12/30/2019. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 11.1.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

VMware

Name

Tools

Version

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Tools 11.1.1

Timelineinfo

12/30/2019 🔍
06/19/2020 +172 days 🔍
06/21/2020 +2 days 🔍
06/21/2020 +0 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: vmware.com
Status: Not defined

CVE: CVE-2020-3972 (🔍)
GCVE (CVE): GCVE-0-2020-3972
GCVE (VulDB): GCVE-100-157071
scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 06/21/2020 10:37
Updated: 06/21/2020 10:42
Changes: 06/21/2020 10:37 (40), 06/21/2020 10:42 (17)
Complete: 🔍
Cache ID: 216::103