EUVD-2024-45750

Comprehensive Technical Analysis of EUVD-2024-45750

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2024-45750 pertains to Username Enumeration, which allows unauthorized access to application-level functions such as adding, deleting, modifying, and listing usernames. This type of vulnerability can be particularly severe because it exposes sensitive user information and can be exploited to gain unauthorized access to systems.

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:L/SI:L/SA:L breaks down as follows:

• AV:N (Network): The vulnerability is exploitable over the network.
• AC:L (Low): The attack complexity is low, meaning it is relatively easy to exploit.
• AT:N (None): No special authentication is required.
• PR:N (None): No privileges are required.
• UI:N (None): No user interaction is required.
• VC:H (High): The vulnerability has a high impact on confidentiality.
• VI:H (High): The vulnerability has a high impact on integrity.
• VA:H (High): The vulnerability has a high impact on availability.
• SC:L (Low): The scope change is low.
• SI:L (Low): The impact on the scope is low.
• SA:L (Low): The scope availability impact is low.

This high score underscores the critical nature of the vulnerability, necessitating immediate attention and mitigation.

2. Potential Attack Vectors and Exploitation Methods

Username Enumeration vulnerabilities can be exploited through various attack vectors:

• Brute Force Attacks: Attackers can use automated tools to enumerate usernames, which can then be used in brute force attacks to guess passwords.
• Phishing Campaigns: Knowledge of valid usernames can enhance the effectiveness of phishing campaigns, making them more targeted and convincing.
• Credential Stuffing: Attackers can use enumerated usernames to attempt credential stuffing attacks, where they use known username-password pairs from other breaches.
• Social Engineering: Valid usernames can be used in social engineering attacks to gain further information or access.

3. Affected Systems and Software Versions

The affected products and versions are:

• ABB ASPECT - Enterprise v3.08.02
• NEXUS Series v3.08.02
• MATRIX Series v3.08.02

These products are widely used in industrial and enterprise settings, making the vulnerability particularly concerning due to the potential for widespread impact.

4. Recommended Mitigation Strategies

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

• Patch Management: Ensure that all affected systems are updated to the latest versions that address this vulnerability.
• Access Controls: Implement strict access controls and limit the exposure of username-related functions to authorized users only.
• Monitoring and Logging: Enhance monitoring and logging to detect and respond to suspicious activities related to username enumeration.
• Rate Limiting: Implement rate limiting on login attempts and other username-related functions to prevent brute force attacks.
• User Education: Educate users about the risks of phishing and social engineering attacks, and encourage the use of strong, unique passwords.

5. Impact on European Cybersecurity Landscape

The impact of this vulnerability on the European cybersecurity landscape is significant. Given the widespread use of ABB products in critical infrastructure and industrial settings, the potential for disruption is high. Unauthorized access to these systems can lead to data breaches, operational disruptions, and financial losses. The vulnerability underscores the need for robust cybersecurity measures and continuous monitoring in critical sectors.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Detection: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and block attempts at username enumeration.
• Response: Develop incident response plans that include steps for identifying and mitigating username enumeration attacks.
• Testing: Conduct regular penetration testing and vulnerability assessments to identify and address similar vulnerabilities.
• Configuration: Ensure that application configurations do not inadvertently expose username-related functions to unauthorized users.

In conclusion, the Username Enumeration vulnerability described in EUVD-2024-45750 is critical and requires immediate attention. Organizations using the affected ABB products should prioritize patching and implementing robust security measures to mitigate the risks associated with this vulnerability.

References

For further details, refer to the official ABB documentation: ABB Documentation

Aliases

CVE-2024-51545

Assigner

ABB

EPSS

N/A

ENISA ID Product

• MATRIX Series: 0 ≤3.08.02
• ASPECT-Enterprise: 0 ≤3.08.02
• NEXUS Series: 0 ≤3.08.02

ENISA ID Vendor

ABB