EUVD-2024-51490

Comprehensive Technical Analysis of EUVD-2024-51490

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified as EUVD-2024-51490 pertains to an Incorrect Authorization issue in the Drupal Smart IP Ban module. This flaw allows for Forceful Browsing, enabling unauthorized users to access restricted resources. The CVSS (Common Vulnerability Scoring System) Base Score of 9.1 indicates a critical severity level. The scoring vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
• Privileges Required (PR): None (N) - No special privileges are needed to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required.
• Scope (S): Unchanged (U) - The vulnerability does not affect resources beyond the security scope managed by the security authority.
• Confidentiality (C): High (H) - There is a high impact on the confidentiality of the system.
• Integrity (I): High (H) - There is a high impact on the integrity of the system.
• Availability (A): None (N) - There is no impact on the availability of the system.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector for this vulnerability is Forceful Browsing, where an attacker can directly access URLs or resources that should be restricted. This can be achieved through:

• Direct URL Access: Attackers can guess or enumerate URLs that are not properly protected by authorization checks.
• Automated Scanning: Tools can be used to scan for accessible URLs and resources.
• Man-in-the-Middle (MitM) Attacks: Intercepting network traffic to identify and access restricted resources.

3. Affected Systems and Software Versions

The vulnerability affects the Drupal Smart IP Ban module versions from 7.X-1.0 before 7.X-1.1. Organizations using Drupal with this module within the specified version range are at risk.

4. Recommended Mitigation Strategies

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

• Update to the Latest Version: Upgrade the Smart IP Ban module to version 7.X-1.1 or later, which includes the necessary security patches.
• Implement Access Controls: Ensure that proper access controls and authorization checks are in place for all resources.
• Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and address similar issues.
• Network Monitoring: Implement network monitoring to detect and respond to unauthorized access attempts.
• User Education: Educate users about the risks of Forceful Browsing and the importance of adhering to security best practices.

5. Impact on European Cybersecurity Landscape

The impact of this vulnerability on the European cybersecurity landscape is significant due to the widespread use of Drupal in various sectors, including government, education, and private enterprises. The high severity score and the potential for unauthorized access to sensitive information make it a critical concern for organizations operating within the EU. Compliance with regulations such as GDPR (General Data Protection Regulation) may also be affected if sensitive data is compromised.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Identification: The vulnerability is identified by CVE-2024-13277 and EUVD-2024-51490.
• Affected Module: Drupal Smart IP Ban module versions from 7.X-1.0 before 7.X-1.1.
• Exploitation: The vulnerability can be exploited by accessing URLs that are not properly protected by authorization checks.
• Mitigation: Upgrade to the patched version of the module and implement robust access controls.
• References: For more information, refer to the Drupal Security Advisory at https://www.drupal.org/sa-contrib-2024-041.

Conclusion

The Incorrect Authorization vulnerability in the Drupal Smart IP Ban module poses a significant risk to organizations using the affected versions. Immediate action, including upgrading to the patched version and implementing robust security measures, is essential to mitigate the risk. The high severity score underscores the importance of addressing this vulnerability promptly to protect sensitive information and maintain compliance with relevant regulations.