EUVD-2024-27365

Comprehensive Technical Analysis of EUVD-2024-27365

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2024-27365 pertains to the Intumit SmartRobot, which employs a fixed encryption key for authentication. This flaw allows remote attackers to generate an authentication code by encrypting a string composed of the user's name and timestamp. With this authentication code, attackers can gain administrator privileges and execute arbitrary code on the remote server.

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: CVSS: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 CVSS score of 9.8 indicates a critical vulnerability. The high confidentiality, integrity, and availability impacts (C:H/I:H/A:H) underscore the potential for severe damage if exploited. The attack vector is network-based (AV:N), requires low complexity (AC:L), no privileges (PR:N), and no user interaction (UI:N), making it highly exploitable.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: The vulnerability can be exploited over the network, allowing remote attackers to target the system without needing physical access.
• Authentication Bypass: By using the fixed encryption key, attackers can generate valid authentication codes, bypassing the authentication mechanism.

Exploitation Methods:

• Authentication Code Generation: Attackers can encrypt a string composed of the user's name and timestamp using the fixed encryption key to generate an authentication code.
• Privilege Escalation: With the generated authentication code, attackers can obtain administrator privileges.
• Arbitrary Code Execution: Once administrator privileges are obtained, attackers can execute arbitrary code on the remote server using built-in system functionality.

3. Affected Systems and Software Versions

Affected Systems:

• Intumit SmartRobot

Affected Software Versions:

• Earlier versions ≤v6.1.2-202212tw

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Apply the latest patches and updates provided by Intumit to address the vulnerability.
• Key Rotation: Implement a mechanism for rotating encryption keys to prevent the use of fixed keys.
• Network Segmentation: Isolate the SmartRobot from other critical systems to limit the potential impact of an attack.
• Monitoring: Enhance monitoring and logging to detect any unusual authentication attempts or administrative activities.

Long-Term Mitigation:

• Security Audits: Conduct regular security audits to identify and address similar vulnerabilities.
• Access Controls: Implement robust access controls and multi-factor authentication to enhance security.
• Incident Response Plan: Develop and maintain an incident response plan to quickly address any security breaches.

5. Impact on European Cybersecurity Landscape

The vulnerability in Intumit SmartRobot poses a significant risk to organizations using this product within the European Union. Given the critical nature of the vulnerability, successful exploitation could lead to widespread data breaches, unauthorized access, and potential disruption of services. This underscores the need for vigilant cybersecurity practices and timely patch management to protect against such threats.

6. Technical Details for Security Professionals

Vulnerability Details:

• Fixed Encryption Key: The use of a fixed encryption key for authentication is a fundamental flaw that allows attackers to predict and generate valid authentication codes.
• Authentication Code Generation: The authentication code is generated by encrypting a string composed of the user's name and timestamp. This predictability makes it easier for attackers to craft valid authentication codes.

Detection and Response:

• Log Analysis: Analyze authentication logs for unusual patterns or repeated attempts to generate authentication codes.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious network activities related to authentication attempts.
• Incident Response: In case of a detected breach, follow the incident response plan to contain, eradicate, and recover from the incident.

References:

• TW-CERT Advisory

Aliases:

• CVE-2024-2413
• GSD-2024-2413

Assigner:

• twcert

EPSS Score:

• 1 (indicating a low likelihood of exploitation in the wild, but this should not diminish the urgency of addressing the vulnerability)

ENISA ID Product:

• SmartRobot (earlier version ≤v6.1.2-202212tw)

ENISA ID Vendor:

• Intumit

By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of exploitation and protect their systems from potential cyber threats.