EUVD-2024-16974

Comprehensive Technical Analysis of EUVD-2024-16974

1. Vulnerability Assessment and Severity Evaluation

The vulnerability in the WP Booking Calendar plugin for WordPress, identified as EUVD-2024-16974, is an SQL Injection flaw. This vulnerability arises due to insufficient escaping of user-supplied parameters and inadequate preparation of SQL queries. The Base Score of 9.8, according to CVSS 3.1, 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:H highlights the following:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill and resources.
• Privileges Required (PR): None (N) - No authentication is required to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is needed for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - The vulnerability can lead to a significant breach of confidentiality.
• Integrity (I): High (H) - The vulnerability can lead to a significant breach of integrity.
• Availability (A): High (H) - The vulnerability can lead to a significant breach of availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector is SQL Injection, which can be exploited by manipulating the calendar_request_params[dates_ddmmyy_csv] parameter. Attackers can inject malicious SQL code into this parameter, allowing them to:

• Extract Sensitive Data: Retrieve confidential information from the database, such as user credentials, personal data, and financial information.
• Modify Database Content: Alter or delete database records, leading to data integrity issues.
• Execute Arbitrary SQL Commands: Perform unauthorized actions, such as creating new admin users or dropping tables.

3. Affected Systems and Software Versions

The vulnerability affects all versions of the WP Booking Calendar plugin up to and including version 9.9. Users of this plugin are at risk, particularly those who have not applied the necessary patches or updates.

4. Recommended Mitigation Strategies

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

• Immediate Patching: Update the WP Booking Calendar plugin to the latest version that addresses the SQL Injection vulnerability.
• Input Validation and Sanitization: Ensure that all user inputs are properly validated and sanitized to prevent SQL Injection attacks.
• Prepared Statements: Use prepared statements and parameterized queries to separate SQL code from data.
• Web Application Firewalls (WAF): Deploy WAFs to detect and block SQL Injection attempts.
• Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and remediate potential security issues.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant threat to the European cybersecurity landscape, particularly for organizations and individuals using the WP Booking Calendar plugin. The potential for data breaches, unauthorized access, and data manipulation can lead to financial losses, reputational damage, and legal consequences under regulations such as the General Data Protection Regulation (GDPR).

6. Technical Details for Security Professionals

Vulnerability Details:

• Parameter: calendar_request_params[dates_ddmmyy_csv]
• Vulnerable Versions: All versions up to and including 9.9
• Exploitation: Unauthenticated attackers can inject SQL code into the vulnerable parameter, leading to SQL Injection attacks.

Detection and Response:

• Log Analysis: Monitor and analyze web server logs for suspicious SQL query patterns.
• Intrusion Detection Systems (IDS): Implement IDS to detect anomalous database activities.
• Incident Response Plan: Develop and maintain an incident response plan to quickly address and mitigate any detected SQL Injection attacks.

References:

• Wordfence Threat Intelligence
• WordPress Plugin Changeset

By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of SQL Injection attacks and protect their sensitive data.