EUVD-2024-42147

Comprehensive Technical Analysis of EUVD-2024-42147

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability identified in the EUVD entry EUVD-2024-42147 affects the MISP (Malware Information Sharing Platform) software. Specifically, the app/Controller/UserLoginProfilesController.php file in versions prior to 2.4.198 allows an organizational (org) admin to view sensitive login fields of another org admin within the same organization. This vulnerability is critical as it compromises the confidentiality, integrity, and availability of sensitive user information.

Severity Evaluation: The CVSS (Common Vulnerability Scoring System) base score for this vulnerability is 9.8, which is classified as critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates the following:

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

This high score underscores the severity of the vulnerability, indicating that it can be easily exploited with significant impact on confidentiality, integrity, and availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attacks: Given the attack vector is network-based, an attacker can exploit this vulnerability remotely without needing physical access to the system.
• Insider Threats: Org admins within the same organization can exploit this vulnerability to view sensitive login information of other admins, potentially leading to unauthorized access and data breaches.

Exploitation Methods:

• Unauthorized Access: An org admin can exploit this vulnerability to view and potentially modify the login credentials of other admins.
• Data Exfiltration: Sensitive information such as login credentials can be exfiltrated, leading to further compromises within the organization.

3. Affected Systems and Software Versions

Affected Software:

• MISP versions prior to 2.4.198

Affected Systems:

• Any system running the vulnerable versions of MISP, particularly those with multiple org admins.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Upgrade: Upgrade to MISP version 2.4.198 or later, which includes the fix for this vulnerability.
• Access Controls: Implement strict access controls and monitoring to detect any unauthorized access attempts.

Long-Term Mitigation:

• Regular Audits: Conduct regular security audits to identify and mitigate similar vulnerabilities.
• User Training: Educate users, especially org admins, about the importance of security best practices and the risks associated with insider threats.

5. Impact on European Cybersecurity Landscape

Impact Assessment:

• Data Breaches: The vulnerability can lead to significant data breaches, affecting the confidentiality and integrity of sensitive information.
• Regulatory Compliance: Organizations may face regulatory penalties and legal consequences due to non-compliance with data protection regulations such as GDPR.
• Reputation Damage: Data breaches resulting from this vulnerability can severely damage an organization's reputation and trust among stakeholders.

6. Technical Details for Security Professionals

Vulnerability Details:

• File Affected: app/Controller/UserLoginProfilesController.php
• Issue: Lack of proper access controls allowing org admins to view sensitive login fields of other admins.

References:

• GitHub Commit: Commit 3a5227d7b3d4518ac109af61979a00145a0de6fa
• Version Comparison: Compare v2.4.197...v2.4.198

Mitigation Steps:

1. Identify Vulnerable Systems: Identify all systems running MISP versions prior to 2.4.198.
2. Upgrade Software: Upgrade these systems to MISP version 2.4.198 or later.
3. Implement Monitoring: Implement monitoring tools to detect any unauthorized access attempts.
4. Review Access Controls: Review and enforce strict access controls to prevent unauthorized access.

Conclusion: The vulnerability EUVD-2024-42147 in MISP is critical and requires immediate attention. Organizations should prioritize upgrading to the patched version and implementing robust security measures to mitigate the risk of exploitation. Regular audits and user training are essential to maintain a strong security posture and protect against similar vulnerabilities in the future.