Description
CLUSTERPRO X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2 and EXPRESSCLUSTER X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2, CLUSTERPRO X SingleServerSafe for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2, EXPRESSCLUSTER X SingleServerSafe for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2 allows an attacker sends specially crafted network packets to the product, arbitrary OS commands may be executed without authentication.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-38189
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2025-38189 is a Cross-site Scripting (XSS) issue affecting various versions of NEC Corporation's UNIVERGE IX and UNIVERGE IX-R/IX-V products. The Base Score of 9.3, as per CVSS 4.0, indicates a critical severity level. The vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N highlights the following:
- Attack Vector (AV:N): Network-based attack.
- Attack Complexity (AC:L): Low complexity required for exploitation.
- Authentication (AT:N): No authentication required.
- Privileges Required (PR:N): No privileges required.
- User Interaction (UI:N): No user interaction required.
- Confidentiality Impact (VC:H): High impact on confidentiality.
- Integrity Impact (VI:H): High impact on integrity.
- Availability Impact (VA:H): High impact on availability.
- Scope Change (SC:N): No change in security scope.
- Secondary Impact (SI:N): No secondary impact.
- Secondary Availability (SA:N): No secondary availability impact.
This vulnerability allows an attacker to execute arbitrary OS commands without authentication, posing a significant risk to the affected systems.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector is through specially crafted network packets. An attacker could exploit this vulnerability by:
- Sending Malicious Packets: Crafting and sending network packets designed to exploit the XSS vulnerability.
- Command Injection: Executing arbitrary OS commands, which could lead to unauthorized access, data exfiltration, or system compromise.
- Phishing and Social Engineering: Tricking users into visiting malicious websites or clicking on links that exploit the vulnerability.
3. Affected Systems and Software Versions
The affected systems and software versions include:
- NEC Corporation UNIVERGE IX:
- Ver.9.5 to Ver.10.7
- Ver.10.8.21 to Ver.10.8.36
- Ver.10.9.11 to Ver.10.9.24
- Ver.10.10.21 to Ver.10.10.31
- Ver.10.11.6
- NEC Corporation UNIVERGE IX-R/IX-V:
- Ver1.3.16
- Ver1.3.21
Additionally, the ENISA ID Product mentions:
- CLUSTERPRO X SingleServerSafe for Linux (EXPRESSCLUSTER X SingleServerSafe for Linux):
- Versions 4.0, 4.1, 4.2, 5.0, 5.1, and 5.2
- CLUSTERPRO X for Linux (EXPRESSCLUSTER X for Linux):
- Versions 4.0, 4.1, 4.2, 5.0, 5.1, and 5.2
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Patch Management: Apply the latest patches and updates provided by NEC Corporation.
- Network Segmentation: Implement network segmentation to isolate critical systems and reduce the attack surface.
- Input Validation: Ensure robust input validation and sanitization mechanisms are in place to prevent XSS attacks.
- Intrusion Detection Systems (IDS): Deploy IDS to monitor and detect suspicious network activity.
- User Education: Educate users about the risks of phishing and social engineering attacks.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential weaknesses.
5. Impact on European Cybersecurity Landscape
The impact of this vulnerability on the European cybersecurity landscape is significant due to the widespread use of NEC Corporation's products in various sectors, including telecommunications, healthcare, and finance. The high severity score and the potential for unauthorized command execution make it a critical concern for organizations relying on these systems. Compliance with regulations such as GDPR and NIS Directive may also be affected, as unauthorized access could lead to data breaches and loss of sensitive information.
6. Technical Details for Security Professionals
For security professionals, the following technical details are essential:
- Vulnerability Type: Cross-site Scripting (XSS) leading to command injection.
- Exploitation Method: Sending specially crafted network packets to the affected product.
- Impact: Arbitrary OS command execution without authentication.
- Detection: Monitor network traffic for unusual patterns and implement logging mechanisms to detect suspicious activities.
- Mitigation: Apply patches, enforce strict input validation, and use network security tools to detect and prevent exploitation attempts.
Conclusion
The vulnerability described in EUVD-2025-38189 poses a critical risk to organizations using the affected NEC Corporation products. Immediate action, including patching and implementing robust security measures, is necessary to mitigate the risk and protect against potential exploitation. Regular monitoring and auditing are essential to ensure the ongoing security of the systems.