EUVD-2025-11466

Comprehensive Technical Analysis of EUVD-2025-11466

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-11466 affects Delta Electronics COMMGR versions 1 and 2. The issue stems from the use of insufficiently randomized values to generate session IDs, which is classified under CWE-338 (Use of Cryptographically Weak Pseudo-Random Number Generator). This vulnerability allows an attacker to predict session IDs and potentially execute arbitrary code.

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: 3.1
• Base Score 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 ease of exploitation (low attack complexity) and the severe impact on confidentiality, integrity, and availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack (AV:N): The vulnerability can be exploited remotely over the network.
• Low Attack Complexity (AC:L): The attack requires minimal skill and resources.
• No Privileges Required (PR:N): The attacker does not need any special privileges to exploit the vulnerability.
• No User Interaction (UI:N): The attack does not require any interaction from the user.

Exploitation Methods:

• Brute Force Attack: An attacker can brute force the session IDs due to their predictable nature.
• Session Hijacking: Once a valid session ID is obtained, the attacker can hijack the session and execute arbitrary code.
• Code Execution: The attacker can load and execute arbitrary code, leading to full system compromise.

3. Affected Systems and Software Versions

Affected Systems:

• Delta Electronics COMMGR v1
• Delta Electronics COMMGR v2

Software Versions:

• All versions of COMMGR v1 and v2 are affected.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Apply the latest patches and updates provided by Delta Electronics.
• Session Management: Implement stronger session management practices, including the use of cryptographically secure random number generators for session IDs.
• Network Segmentation: Segregate critical systems from the general network to limit the attack surface.

Long-Term Mitigation:

• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activities.
• User Education: Educate users on the importance of security practices and the risks associated with vulnerabilities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using Delta Electronics COMMGR, particularly those in critical infrastructure sectors such as energy, manufacturing, and healthcare. The potential for arbitrary code execution and session hijacking can lead to data breaches, system compromises, and operational disruptions. This underscores the need for robust cybersecurity measures and continuous monitoring within the European cybersecurity landscape.

6. Technical Details for Security Professionals

Vulnerability Details:

• CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator
• Session ID Generation: The session IDs are generated using insufficiently randomized values, making them predictable.
• Exploitation: An attacker can predict session IDs and hijack sessions to execute arbitrary code.

References:

• Delta Electronics Advisory: Delta-PCSA-2025-00005_COMMGR%20-%20Insufficient%20Randomization%20Authentication%20Bypass_v1.pdf
• CISA Advisory: ICSA-25-105-07

Aliases:

• CVE-2025-3495

Assigner:

• Deltaww

ENISA IDs:

• Product: COMMGR (ID: fed33663-4617-311a-9d02-a661dbdb2449)
• Vendor: Delta Electronics (ID: 61a66ddd-86e3-34d8-90d0-a3cdbecb1097)

Conclusion:

The vulnerability EUVD-2025-11466 in Delta Electronics COMMGR v1 and v2 is critical and requires immediate attention. Organizations should prioritize patching and implementing robust security measures to mitigate the risk. Continuous monitoring and regular audits are essential to maintain a strong cybersecurity posture in the European landscape.