CVE-2021-39000 : What You Need to Know
Learn about CVE-2021-39000 affecting IBM MQ Appliance versions 9.2.0.0 to 9.2.3, allowing local attackers to access sensitive information. Understand the impact, technical details, and necessary mitigation steps.
IBM MQ Appliance 9.2 CD and 9.2 LTS could allow a local attacker to obtain sensitive information by inclusion of sensitive data within diagnostics. This vulnerability was published on November 29, 2021, with a CVSS base score of 5.9.
Understanding CVE-2021-39000
CVE-2021-39000 is a security vulnerability in IBM MQ Appliance versions 9.2.0.0 to 9.2.3 that could lead to the exposure of sensitive information.
What is CVE-2021-39000?
- Vulnerability Type: Obtain Information
- Vendor: IBM
- Affected Versions: 9.2.0.0, 9.2.1, 9.2.0.1, 9.2.2, 9.2.0.2, 9.2.0.3, 9.2.3
- CVSS Base Score: 5.9 (Medium)
- Attack Vector: Network
- Attack Complexity: High
- Confidentiality Impact: High
The Impact of CVE-2021-39000
This vulnerability could allow a local attacker to retrieve sensitive data through diagnostic information on the affected IBM MQ Appliance versions.
Technical Details of CVE-2021-39000
CVE-2021-39000 involves the following technical aspects:
Vulnerability Description
The vulnerability in IBM MQ Appliance versions 9.2.0.0 to 9.2.3 allows a local attacker to access sensitive data via diagnostic information.
Affected Systems and Versions
- IBM MQ Appliance 9.2.0.0
- IBM MQ Appliance 9.2.1
- IBM MQ Appliance 9.2.0.1
- IBM MQ Appliance 9.2.2
- IBM MQ Appliance 9.2.0.2
- IBM MQ Appliance 9.2.0.3
- IBM MQ Appliance 9.2.3
Exploitation Mechanism
The vulnerability exploits the inclusion of sensitive data within diagnostic outputs of IBM MQ Appliance versions 9.2.0.0 to 9.2.3.
Mitigation and Prevention
It is essential to take immediate action to secure the affected systems and prevent potential exploitation.
Immediate Steps to Take
- Apply the official fix provided by IBM for the affected versions.
- Monitor system logs for any suspicious activities indicating exploitation.
Long-Term Security Practices
- Regularly update and patch IBM MQ Appliance to the latest versions.
- Educate users on best practices to prevent information leakage.
Patching and Updates
- IBM has released patches to address this vulnerability. Ensure timely installation of these patches to safeguard the systems.