EUVD-2024-54677

Comprehensive Technical Analysis of EUVD-2024-54677

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-54677, also known as CVE-2024-56158, pertains to a SQL injection flaw in the query endpoint of the REST API in XWiki when used with Oracle databases. The Common Vulnerability Scoring System (CVSS) version 4.0 assigns a base score of 9.3, indicating a critical severity level. The CVSS vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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.
• Authentication (AT): None (N) - No authentication is required to exploit the vulnerability.
• Privileges Required (PR): None (N) - No special privileges are needed.
• User Interaction (UI): None (N) - No user interaction is required.
• Confidentiality (VC): High (H) - There is a high impact on confidentiality.
• Integrity (VI): High (H) - There is a high impact on integrity.
• Availability (VA): High (H) - There is a high impact on availability.
• Scope (SC): Not Changed (N) - The scope of the vulnerability does not change.
• Scope Integrity (SI): Not Changed (N) - The scope integrity does not change.
• Scope Availability (SA): Not Changed (N) - The scope availability does not change.

Given the high impact on confidentiality, integrity, and availability, this vulnerability poses a significant risk to organizations using XWiki with Oracle databases.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector is through the REST API's query endpoint. An attacker can craft malicious SQL queries and inject them into the endpoint, potentially leading to unauthorized access to the database, data manipulation, or even complete database compromise. Exploitation methods may include:

• SQL Injection: Crafting SQL queries to extract sensitive data, modify database contents, or execute arbitrary commands.
• Data Exfiltration: Extracting confidential information from the database.
• Data Manipulation: Altering database records to disrupt operations or introduce malicious data.
• Denial of Service (DoS): Overloading the database with malicious queries to disrupt service availability.

3. Affected Systems and Software Versions

The vulnerability affects the following versions of the XWiki platform:

• 1.0 to 15.10.16
• 16.5.0-rc-1 to 16.10.2
• 16.0.0-rc-1 to 16.4.7

Organizations running any of these versions with Oracle databases are at risk and should prioritize mitigation efforts.

4. Recommended Mitigation Strategies

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

• Update to the Latest Version: Upgrade to a patched version of XWiki that addresses this vulnerability.
• Input Validation: Implement robust input validation and sanitization for all user inputs, especially those directed to the REST API.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
• Web Application Firewalls (WAF): Deploy WAFs to detect and block malicious SQL injection attempts.
• Database Monitoring: Implement continuous monitoring and logging of database activities to detect and respond to suspicious behavior.
• Least Privilege Principle: Ensure that database accounts used by XWiki have the minimum necessary privileges.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant threat to European organizations using XWiki with Oracle databases. Given the critical nature of the vulnerability, it could lead to data breaches, financial losses, and reputational damage. The European Union's General Data Protection Regulation (GDPR) mandates stringent data protection measures, and organizations failing to address this vulnerability could face regulatory penalties.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Identification: The vulnerability is identified by EUVD-2024-54677 and CVE-2024-56158.
• References:
  • GitHub Security Advisory
  • XWiki Jira Issue
  • NVD Detail
• Affected Product: XWiki Platform
• Vendor: XWiki
• EPSS: Not Available

Security professionals should review the provided references for detailed advisories and patches. Implementing a comprehensive security strategy that includes regular updates, robust input validation, and continuous monitoring is crucial to mitigate the risk posed by this vulnerability.

Conclusion

EUVD-2024-54677 is a critical SQL injection vulnerability in XWiki's REST API when used with Oracle databases. Organizations must prioritize updating to patched versions and implementing robust security measures to protect against potential exploitation. The high impact on confidentiality, integrity, and availability underscores the urgency of addressing this vulnerability to maintain the security and compliance of European cybersecurity standards.