EUVD-2025-29031

Comprehensive Technical Analysis of EUVD-2025-29031

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-29031 pertains to an Exposure of Sensitive Information in certain models of Network Video Recorders (NVRs) developed by Digiever. This vulnerability allows unauthenticated remote attackers to access the system configuration file, which contains plaintext credentials for the NVR and its connected cameras.

Severity Evaluation:

• Base Score: 10.0 (Critical)
• Base Score Version: 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

The CVSS score of 10.0 indicates a critical vulnerability. The vector string highlights the following:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Changed (C)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): High (H)

This vulnerability is highly exploitable due to its low complexity and the lack of required privileges or user interaction. The impact on confidentiality, integrity, and availability is severe.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Remote Access: Attackers can exploit this vulnerability over the network without needing any credentials.
• Configuration File Exposure: The system configuration file, which contains sensitive information such as plaintext credentials, is accessible to unauthenticated users.

Exploitation Methods:

• Network Scanning: Attackers can scan for vulnerable NVRs on the network.
• Configuration File Retrieval: Once a vulnerable NVR is identified, attackers can retrieve the configuration file, extracting plaintext credentials.
• Credential Abuse: With the obtained credentials, attackers can gain unauthorized access to the NVR and connected cameras, potentially leading to further compromise.

3. Affected Systems and Software Versions

The vulnerability affects multiple models of Digiever NVRs, including:

• DS-2100 Pro (versions 0 ≤..*.78)
• DS-8x00-SRM Pro+ (versions 0 ≤x.x.x.78)
• DS-16x00-RM Pro+ (versions 0 ≤x.x.x.78)
• DS-8x00-RM Pro+ (versions 0 ≤x.x.x.78)
• DS-2200 UHD+ (versions 0 ≤..*.78)
• DS-16x00-RM UHD (versions 0 ≤x.x.x.78)
• DS-4200 UHD (versions 0 ≤x.x.x.78)
• DS-2100 Pro+ (versions 0 ≤..*.78)
• DS-1200 (versions 0 ≤..*.78)
• DS-4200 Pro (versions 0 ≤..*.78)
• DS-2100 UHD (versions 0 ≤..*.78)
• DS-4200-RM Pro+ (versions 0 ≤x.x.x.78)
• DS-4100-RM (versions 0 ≤x.x.x.78)
• DS-4200-RM UHD (versions 0 ≤x.x.x.78)
• DS-8x00-RM UHD (versions 0 ≤x.x.x.78)
• DS-4200 UHD+ (versions 0 ≤x.x.x.78)
• DS-4200 Pro+ (versions 0 ≤x.x.x.78)
• DS-2200 UHD (versions 0 ≤..*.78)

4. Recommended Mitigation Strategies

Immediate Actions:

• Patch Management: Apply the latest firmware updates provided by Digiever to mitigate the vulnerability.
• Network Segmentation: Isolate NVRs from public networks and restrict access to trusted IP addresses.
• Credential Management: Change default credentials and enforce strong, unique passwords for all NVRs and connected cameras.
• Monitoring: Implement continuous monitoring and logging to detect unauthorized access attempts.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Access Control: Implement strict access control policies and use multi-factor authentication where possible.
• Encryption: Ensure that sensitive data, including configuration files, is encrypted both at rest and in transit.

5. Impact on European Cybersecurity Landscape

The exposure of sensitive information in NVRs poses a significant risk to the European cybersecurity landscape, particularly in sectors relying heavily on surveillance systems, such as:

• Critical Infrastructure: Power plants, transportation systems, and public utilities.
• Public Safety: Law enforcement, emergency services, and public spaces.
• Commercial Sectors: Retail, banking, and corporate environments.

Unauthorized access to NVRs can lead to data breaches, surveillance system compromises, and potential physical security risks.

6. Technical Details for Security Professionals

Vulnerability Details:

• CVE ID: CVE-2025-10264
• Assigner: twcert
• References:
  • TWCert Report 1
  • TWCert Report 2
  • NVD Detail

Technical Recommendations:

• Firmware Update: Ensure all affected NVRs are updated to the latest firmware version provided by Digiever.
• Configuration Review: Review and secure the configuration of all NVRs, ensuring that sensitive information is not exposed.
• Incident Response: Develop and implement an incident response plan to address potential breaches quickly.

Conclusion: The vulnerability in Digiever NVRs is critical and requires immediate attention. Organizations should prioritize patching affected systems, implementing robust security measures, and continuously monitoring their networks to mitigate the risk of exploitation. The European cybersecurity community must collaborate to address such vulnerabilities and enhance the overall security posture.