Description
OpenMQ exposes a TCP-based management service (imqbrokerd) that by default requires authentication. However, the product ships with a default administrative account (admin/ admin) and does not enforce a mandatory password change on first use. After the first successful login, the server continues to accept the default password indefinitely without warning or enforcement. In real-world deployments, this service is often left enabled without changing the default credentials. As a result, a remote attacker with access to the service port could authenticate as an administrator and gain full control of the protocol’s administrative features.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2026-9283
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2026-9283 pertains to the OpenMQ message broker, specifically its TCP-based management service (imqbrokerd). The primary issue is the use of default administrative credentials (admin/admin) without enforcing a mandatory password change upon first use. This vulnerability allows remote attackers to authenticate as administrators and gain full control over the administrative features of the protocol.
Severity Evaluation:
- CVSS Base Score: 9.8
- CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The high base score indicates a critical vulnerability due to the following factors:
- Attack Vector (AV:N): Network-based attack, meaning it can be exploited remotely.
- Attack Complexity (AC:L): Low complexity, indicating that the attack does not require specialized conditions.
- Privileges Required (PR:N): No privileges are required to exploit the vulnerability.
- User Interaction (UI:N): No user interaction is required.
- Scope (S:U): Unchanged, meaning the vulnerability affects the same security scope.
- Confidentiality (C:H), Integrity (I:H), Availability (A:H): High impact on all three security properties.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Remote Access: An attacker can exploit this vulnerability by accessing the management service over the network.
- Default Credentials: The use of default credentials (admin/admin) allows unauthorized access.
Exploitation Methods:
- Brute Force: Attackers can use automated tools to attempt default credentials on exposed management services.
- Credential Stuffing: Using known default credentials to gain access.
- Network Scanning: Identifying exposed OpenMQ management services on the network.
3. Affected Systems and Software Versions
Affected Software:
- Product: Eclipse OpenMQ
- Version: All versions that ship with the default administrative account (admin/admin) and do not enforce a mandatory password change.
Affected Systems:
- Any system running the vulnerable versions of Eclipse OpenMQ with the management service (imqbrokerd) enabled and accessible over the network.
4. Recommended Mitigation Strategies
Immediate Mitigation:
- Change Default Credentials: Immediately change the default administrative credentials to strong, unique passwords.
- Network Segmentation: Limit network access to the management service to trusted IP addresses.
- Firewall Rules: Implement firewall rules to restrict access to the management service port.
Long-Term Mitigation:
- Patch Management: Apply vendor-provided patches or updates that enforce mandatory password changes upon first use.
- Regular Audits: Conduct regular security audits to identify and mitigate default or weak credentials.
- Monitoring: Implement monitoring and alerting for unauthorized access attempts to the management service.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations within the European Union that rely on Eclipse OpenMQ for message brokering. The potential for unauthorized administrative access can lead to data breaches, service disruptions, and loss of confidentiality, integrity, and availability of critical systems. This underscores the importance of robust cybersecurity practices, including regular updates, strong authentication mechanisms, and proactive monitoring.
6. Technical Details for Security Professionals
Detection:
- Log Analysis: Review logs for successful logins using default credentials.
- Network Traffic Analysis: Monitor for unusual traffic patterns to the management service port.
Response:
- Incident Response Plan: Develop and implement an incident response plan specific to unauthorized access incidents.
- Credential Management: Use centralized credential management solutions to enforce strong password policies.
- Automated Tools: Utilize automated tools for continuous monitoring and alerting on default credential usage.
Prevention:
- Security Training: Conduct regular security training for IT staff to emphasize the importance of changing default credentials.
- Configuration Management: Implement configuration management tools to ensure consistent and secure configurations across all instances of OpenMQ.
Conclusion: The vulnerability in Eclipse OpenMQ highlights the critical need for secure default configurations and proactive security measures. Organizations must prioritize changing default credentials, implementing strong access controls, and maintaining vigilant monitoring to mitigate the risks associated with this vulnerability.
References:
By addressing these points, organizations can significantly reduce the risk of exploitation and enhance their overall cybersecurity posture.