NYS ITS CYBER SECURITY ADVISORY - A Vulnerability in VMware Carbon Black App Control Could Allow for Authentication Bypass - RISK: HIGH

ITS Advisory Number: 
2021-083
Date(s) Issued: 
Thursday, June 24, 2021
Subject: 
NYS ITS CYBER SECURITY ADVISORY - A Vulnerability in VMware Carbon Black App Control Could Allow for Authentication Bypass - RISK: HIGH
Overview: 

A vulnerability has been discovered in VMware Carbon Black App Control, which could result in an authentication bypass. VMware Carbon Black App Control is a application control product, used to lock down servers and critical systems, prevent unwanted changes and ensure continuous compliance with regulatory mandates. An attacker with access to the AppC management server could bypass authentication and gain unauthorized access which could then allow the attacker to perform actions as an administrator.

 

THREAT INTELLIGENCE:

There are currently no reports of this vulnerability being exploited in the wild.

Systems Affected: 
  • VMware Carbon Black App Control Versions prior to 8.6.2 and 8.5.8
  • VMware Carbon Black App Control Versions 8.0 and 8.1
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
Medium
BUSINESS
Large and medium business entities: 
High
Small business entities: 
Medium
Home Users: 
Low
Description: 

A vulnerability has been discovered in VMware Carbon Black App Control, which could result in an authentication bypass. This could allow an attacker with network access to bypass authentication and gain administrative privileges (CVE-2021- 21998). Resources that an attacker could have access to are servers and critical systems. Successful exploitation of this vulnerability could allow for an attacker to gain unauthorized access to the affected application and perform actions as an administrator.

Actions: 
  • After appropriate testing, immediately apply updates provided by VMware to vulnerable systems.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.
  • Apply the Principle of Least Privilege to all systems and services.