Vulnerabilities > CVE-2020-3948 - Improper Privilege Management vulnerability in VMWare Fusion and Workstation

047910
CVSS 4.6 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
local
low complexity
vmware
CWE-269
nessus

Summary

Linux Guest VMs running on VMware Workstation (15.x before 15.5.2) and Fusion (11.x before 11.5.2) contain a local privilege escalation vulnerability due to improper file permissions in Cortado Thinprint. Local attackers with non-administrative access to a Linux guest VM with virtual printing enabled may exploit this issue to elevate their privileges to root on the same guest VM.

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.

Nessus

  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_FUSION_VMSA_2020_0004.NASL
    descriptionThe version of VMware Fusion installed on the remote macOS or Mac OS X host is 11.x prior to 11.5.2. It is, therefore, affected by multiple vulnerabilities. Note that Nessus has not tested for these issues but has instead relied only on the application
    last seen2020-03-28
    modified2020-03-16
    plugin id134628
    published2020-03-16
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/134628
    titleVMware Fusion 11.x < 11.5.2 Multiple Vulnerabilities (VMSA-2020-0004)
  • NASL familyWindows
    NASL idVMWARE_WORKSTATION_VMSA_2020_0004.NASL
    descriptionThe version of VMware Workstation installed on the remote Windows host is 15.0.x prior to 15.5.2. It is, therefore, affected by multiple vulnerabilities. Note that Nessus has not tested for these issues but has instead relied only on the application
    last seen2020-03-28
    modified2020-03-16
    plugin id134627
    published2020-03-16
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/134627
    titleVMware Workstation 15.0.x < 15.5.2 Multiple Vulnerabilities (VMSA-2020-0004)
  • NASL familyGeneral
    NASL idVMWARE_WORKSTATION_LINUX_VMSA_2020_0004.NASL
    descriptionThe version of VMware Workstation installed on the remote Linux host is 15.x prior to 15.5.2. It is, therefore, affected by multiple vulnernabilities. Note that Nessus has not tested for these issues but has instead relied only on the application
    last seen2020-03-28
    modified2020-03-16
    plugin id134626
    published2020-03-16
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/134626
    titleVMware Workstation 15.x < 15.5.2 Multiple Vulnerabilities (VMSA-2020-0004) (Linux)