CVE-2019-4620 : What You Need to Know
Learn about CVE-2019-4620 affecting IBM MQ Appliance versions 8.0 and 9.0 LTS. Discover the impact, affected systems, exploitation mechanism, and mitigation steps.
IBM MQ Appliance versions 8.0 and 9.0 LTS have a vulnerability that could be exploited by a local attacker due to improper validation of environment variables.
Understanding CVE-2019-4620
The vulnerability in IBM MQ Appliance versions 8.0 and 9.0 LTS could allow attackers to bypass security restrictions.
What is CVE-2019-4620?
The vulnerability in IBM MQ Appliance versions 8.0 and 9.0 LTS stems from improper validation of environment variables, enabling local attackers to bypass security measures.
The Impact of CVE-2019-4620
- CVSS Score: 8.4 (High)
- Attack Vector: Local
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Exploit Code Maturity: Unproven
- Privileges Required: None
- User Interaction: None
- Remediation Level: Official Fix
- Report Confidence: Confirmed
Technical Details of CVE-2019-4620
The technical details of the CVE-2019-4620 vulnerability.
Vulnerability Description
The vulnerability allows local attackers to bypass security restrictions by exploiting improper validation of environment variables in IBM MQ Appliance versions 8.0 and 9.0 LTS.
Affected Systems and Versions
- Affected Versions: 8.0.0.0, 8.0.0.1, 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6, 8.0.0.7, 8.0.0.9, 8.0.0.10, 8.0.0.11, 8.0.0.12, 8.0.0.13, 9.1.0.1, 9.1.0.2, 9.1.0.3, 9.1.1, 9.1.2, 9.1.3, 9.1
- Product: MQ Appliance
- Vendor: IBM
Exploitation Mechanism
The vulnerability can be exploited by a local attacker manipulating environment variables to bypass security controls.
Mitigation and Prevention
Steps to mitigate and prevent exploitation of CVE-2019-4620.
Immediate Steps to Take
- Apply official fixes provided by IBM for affected versions.
- Monitor IBM's security bulletins for updates and patches.
Long-Term Security Practices
- Regularly update and patch IBM MQ Appliance to the latest secure versions.
- Implement strict access controls and monitoring to detect unauthorized activities.
Patching and Updates
- IBM provides official fixes for the affected versions. Stay informed about security updates and apply patches promptly.