CVE-2019-4155 : What You Need to Know

IBM API Connect's Developer Portal versions 2018.1 and 2018.4.1.3 are affected by a privilege escalation vulnerability when used with an OpenID Connect (OIDC) user registry.

Understanding CVE-2019-4155

This CVE involves a privilege escalation vulnerability in IBM API Connect's Developer Portal.

What is CVE-2019-4155?

The vulnerability affects versions 2018.1 and 2018.4.1.3 of IBM API Connect when integrated with an OpenID Connect (OIDC) user registry. It is identified as vulnerability number 158544 by IBM X-Force.

The Impact of CVE-2019-4155

CVSS Score: 8.8 (High Severity)
Attack Vector: Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: Low
Exploit Code Maturity: Unproven
User Interaction: None
Remediation Level: Official Fix
Report Confidence: Confirmed

Technical Details of CVE-2019-4155

This section provides technical details of the vulnerability.

Vulnerability Description

The vulnerability allows for privilege escalation in IBM API Connect's Developer Portal.

Affected Systems and Versions

Product: API Connect
Vendor: IBM
Versions: 2018.1, 2018.4.1.3

Exploitation Mechanism

The vulnerability can be exploited when the affected versions are used with an OpenID Connect (OIDC) user registry.

Mitigation and Prevention

Steps to address and prevent exploitation of the vulnerability.

Immediate Steps to Take

Apply the official fix provided by IBM.
Monitor for any unauthorized access or unusual activities.
Consider restricting access to the affected systems.

Long-Term Security Practices

Regularly update and patch the API Connect software.
Implement strong authentication mechanisms.
Conduct security audits and assessments periodically.

Patching and Updates

Ensure that all systems running API Connect are updated with the latest patches and security fixes.