CVE-2022-21939 : Exploit Details and Defense Strategies

A detailed analysis of CVE-2022-21939, a vulnerability in Johnson Controls System Configuration Tool (SCT) that could lead to sensitive cookie exposure.

Understanding CVE-2022-21939

This section provides insights into the nature and impact of the CVE-2022-21939 vulnerability.

What is CVE-2022-21939?

The vulnerability lies in Johnson Controls System Configuration Tool (SCT), versions 14 and 15, allowing unauthorized access to sensitive cookies without the 'HttpOnly' flag.

The Impact of CVE-2022-21939

Exploiting this vulnerability could result in unauthorized access to cookies, endangering the confidentiality and integrity of user data.

Technical Details of CVE-2022-21939

Explore the technical aspects of the CVE-2022-21939 vulnerability to understand its implications.

Vulnerability Description

The vulnerability arises from the absence of the 'HttpOnly' flag in cookies, enabling potential attackers to access sensitive information.

Affected Systems and Versions

System Configuration Tool (SCT) version 14 before 14.2.3
System Configuration Tool (SCT) version 15 before 15.0.3

Exploitation Mechanism

Attackers can exploit this flaw remotely, without requiring any user privileges, through a high-complexity network attack vector.

Mitigation and Prevention

Discover the necessary steps to mitigate the CVE-2022-21939 vulnerability and enhance overall system security.

Immediate Steps to Take

Update System Configuration Tool (SCT) version 14 to patch 14.2.3 and version 15 to patch 15.0.3 immediately to eliminate the vulnerability.

Long-Term Security Practices

Establish robust security measures to protect sensitive information, including regular security audits and training for personnel.

Patching and Updates

Contact your local Johnson Controls office or Authorized Building Control Specialists (ABCS) for further assistance in addressing and preventing such vulnerabilities.