CVE-2018-1836 Explained : Impact and Mitigation
Learn about CVE-2018-1836 affecting IBM WebSphere MQ versions 9.0.2 to 9.1.0.1. Understand the impact, technical details, and mitigation steps for this cross-site scripting vulnerability.
IBM WebSphere MQ versions 9.0.2 to 9.1.0.1 are susceptible to a cross-site scripting vulnerability that allows malicious users to inject JavaScript code into the Web UI, potentially leading to credential exposure.
Understanding CVE-2018-1836
This CVE involves a security issue in the console of IBM WebSphere MQ versions 9.0.2, 9.0.3, 9.0.4, 9.0.5, 9.1.0.0, and 9.1.0.1 related to cross-site scripting.
What is CVE-2018-1836?
The vulnerability enables users to insert JavaScript code into the Web UI, altering its functionality and potentially disclosing credentials during a trusted session.
The Impact of CVE-2018-1836
- CVSS Base Score: 5.4 (Medium Severity)
- Attack Vector: Network
- Exploit Code Maturity: High
- User Interaction: Required
- Scope: Changed
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
Technical Details of CVE-2018-1836
The following technical details provide insight into the vulnerability.
Vulnerability Description
The vulnerability in IBM WebSphere MQ allows for cross-site scripting, enabling the injection of arbitrary JavaScript code into the Web UI.
Affected Systems and Versions
- IBM WebSphere MQ 9.0.2
- IBM WebSphere MQ 9.0.3
- IBM WebSphere MQ 9.0.4
- IBM WebSphere MQ 9.0.5
- IBM WebSphere MQ 9.1.0.0
- IBM WebSphere MQ 9.1.0.1
Exploitation Mechanism
The vulnerability can be exploited by injecting malicious JavaScript code into the Web UI, potentially leading to unauthorized access and credential exposure.
Mitigation and Prevention
Protect your systems from CVE-2018-1836 with the following measures.
Immediate Steps to Take
- Apply official fixes provided by IBM.
- Monitor and restrict user interactions with the Web UI.
- Educate users on safe browsing practices.
Long-Term Security Practices
- Regularly update and patch IBM WebSphere MQ installations.
- Implement security training for developers to prevent code injection vulnerabilities.
Patching and Updates
Ensure timely installation of official fixes and updates from IBM to address the cross-site scripting vulnerability.