CVE-2019-4049 : Exploit Details and Defense Strategies

A security vulnerability has been identified in versions 9.1.0.0, 9.1.0.1, 9.1.1, and 9.1.0.2 of IBM MQ, allowing a denial of service attack by filling up disk space.

Understanding CVE-2019-4049

This CVE involves a vulnerability in IBM MQ versions 9.1.0.0, 9.1.0.1, 9.1.1, and 9.1.0.2 that can be exploited for a denial of service attack.

What is CVE-2019-4049?

The vulnerability allows a local user to occupy the available disk space by using the error logging service.
Assigned IBM X-Force ID: 156398.

The Impact of CVE-2019-4049

CVSS v3.0 Base Score: 6.2 (Medium Severity)
Attack Vector: Local
Availability Impact: High
Exploit Code Maturity: Unproven
Allows a denial of service attack.

Technical Details of CVE-2019-4049

This section provides technical details of the vulnerability.

Vulnerability Description

Local user can fill up disk space using error logging service.

Affected Systems and Versions

IBM MQ versions 9.1.0.0, 9.1.0.1, 9.1.1, 9.1.0.2

Exploitation Mechanism

Local user exploits error logging service to occupy disk space.

Mitigation and Prevention

Steps to address and prevent the vulnerability.

Immediate Steps to Take

Apply official fix provided by IBM.
Monitor disk space usage regularly.

Long-Term Security Practices

Implement least privilege access controls.
Conduct regular security audits.
Educate users on secure practices.

Patching and Updates

Stay updated with security bulletins from IBM.