EUVD-2025-10327

Comprehensive Technical Analysis of EUVD-2025-10327

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the SENTRON 7KT PAC1260 Data Manager (all versions) involves a lack of sanitization for the region parameter in specific POST requests within the web interface. This flaw allows an authenticated remote attacker to execute arbitrary code with root privileges. The CVSS (Common Vulnerability Scoring System) base score of 9.1 indicates a critical severity level. The vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H breaks down as follows:

• AV:N (Attack Vector: Network): The vulnerability is exploitable over the network.
• AC:L (Attack Complexity: Low): The attack requires minimal skill or resources.
• PR:H (Privileges Required: High): The attacker needs high-level privileges.
• UI:N (User Interaction: None): No user interaction is required.
• S:C (Scope: Changed): The vulnerability affects a component that is outside the security scope of the vulnerable component.
• C:H (Confidentiality: High): There is a high impact on confidentiality.
• I:H (Integrity: High): There is a high impact on integrity.
• A:H (Availability: High): There is a high impact on availability.

2. Potential Attack Vectors and Exploitation Methods

Given the nature of the vulnerability, potential attack vectors include:

• Authenticated Remote Code Execution (RCE): An attacker with valid credentials can craft a malicious POST request to the web interface, injecting arbitrary code through the unsanitized region parameter.
• Privilege Escalation: Once authenticated, the attacker can escalate privileges to root, allowing full control over the affected device.
• Data Exfiltration: With root access, the attacker can exfiltrate sensitive data, modify configurations, or install malware.

3. Affected Systems and Software Versions

All versions of the SENTRON 7KT PAC1260 Data Manager are affected. This includes any device running the software without the necessary patches or updates.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Immediate Patching: Apply the latest security patches provided by Siemens as soon as they are available.
• Access Control: Implement strict access controls to limit the number of users with high-level privileges.
• Network Segmentation: Segregate the affected devices from critical networks to limit the potential impact of an attack.
• Monitoring and Logging: Enhance monitoring and logging to detect any unusual activity or unauthorized access attempts.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential weaknesses.

5. Impact on European Cybersecurity Landscape

The vulnerability in the SENTRON 7KT PAC1260 Data Manager poses a significant risk to European organizations, particularly those in critical infrastructure sectors such as energy, manufacturing, and healthcare. The potential for remote code execution with root privileges could lead to severe disruptions, data breaches, and financial losses. This underscores the importance of robust cybersecurity measures and timely patch management.

6. Technical Details for Security Professionals

• Vulnerability Type: Input Validation Error leading to Remote Code Execution (RCE).
• Affected Component: Web interface of SENTRON 7KT PAC1260 Data Manager.
• Exploitation: The attacker sends a crafted POST request with a malicious payload in the region parameter.
• Detection: Monitor network traffic for unusual POST requests to the web interface. Implement intrusion detection systems (IDS) to identify and alert on suspicious activities.
• Response: Isolate affected devices, apply patches, and review access logs to identify any compromised accounts.

Conclusion

The vulnerability EUVD-2025-10327 in the SENTRON 7KT PAC1260 Data Manager is critical and requires immediate attention. Organizations should prioritize patching affected systems, implementing robust access controls, and enhancing monitoring capabilities to mitigate the risk. The potential impact on European cybersecurity highlights the need for continuous vigilance and proactive security measures.

References

• NVD Entry
• Siemens Security Advisory