CVE-2019-4424 : Exploit Details and Defense Strategies

IBM Business Automation Workflow versions 18.0.0.0, 18.0.0.1, 18.0.0.2, 19.0.0.1, and 19.0.0.2 are susceptible to an XML External Entity Injection (XXE) vulnerability, potentially leading to exposure of sensitive data or resource consumption.

Understanding CVE-2019-4424

This CVE involves a security flaw in IBM Business Automation Workflow that could allow a remote attacker to execute an XXE attack, posing risks to data confidentiality and system availability.

What is CVE-2019-4424?

IBM Business Automation Workflow versions 18.0.0.0 to 19.0.0.2 are affected
Vulnerability identified with IBM X-Force ID: 162770
XXE attack can occur during XML data processing
Successful exploitation may expose sensitive information or consume memory resources

The Impact of CVE-2019-4424

CVSS Base Score: 7.1 (High Severity)
Attack Vector: Network
Confidentiality Impact: High
Availability Impact: Low
Exploit Code Maturity: Unproven
Attack Complexity: Low
Scope: Unchanged
User Interaction: None
Remediation Level: Official Fix
Report Confidence: Confirmed

Technical Details of CVE-2019-4424

Vulnerability Description

The vulnerability allows for XML External Entity Injection (XXE) attacks in IBM Business Automation Workflow.

Affected Systems and Versions

IBM Business Automation Workflow 18.0.0.0, 18.0.0.1, 18.0.0.2, 19.0.0.1, 19.0.0.2

Exploitation Mechanism

Remote attackers can exploit the vulnerability during XML data processing

Mitigation and Prevention

Immediate Steps to Take

Apply official fixes provided by IBM
Monitor IBM's security bulletins for updates

Long-Term Security Practices

Regularly update and patch IBM Business Automation Workflow
Implement network security measures to prevent unauthorized access
Conduct security assessments and audits periodically

Patching and Updates

Refer to IBM's security bulletin for specific patch details