EUVD-2024-51967

Comprehensive Technical Analysis of EUVD-2024-51967

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-51967 affects the EventAttendance.php file in ChurchCRM version 5.7.0. This vulnerability is classified as a SQL injection flaw, which is a critical issue due to the potential for unauthorized access and data manipulation. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates a high severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability can be exploited remotely 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 for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability affects the same 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

An attacker can exploit this vulnerability by manipulating the 'Event' parameter in the EventAttendance.php file. This parameter is directly interpolated into the SQL query without proper sanitization or validation, allowing the execution of arbitrary SQL commands. Potential attack vectors include:

• Direct SQL Injection: Crafting malicious input to execute SQL commands directly.
• Union-Based SQL Injection: Using UNION SQL statements to extract data from other tables.
• Error-Based SQL Injection: Inducing database errors to gather information about the database structure.
• Blind SQL Injection: Using conditional responses to infer information about the database.

3. Affected Systems and Software Versions

The vulnerability specifically affects ChurchCRM version 5.7.0. Any system running this version of ChurchCRM is at risk. It is crucial to identify and update all instances of ChurchCRM to a patched version to mitigate the risk.

4. Recommended Mitigation Strategies

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

• Immediate Patching: Upgrade to a patched version of ChurchCRM that addresses this vulnerability.
• Input Validation and Sanitization: Ensure that all user inputs are properly validated and sanitized before being used in SQL queries.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
• Web Application Firewalls (WAF): Implement WAFs to detect and block malicious SQL injection attempts.
• Regular Security Audits: Conduct regular security audits and code reviews to identify and fix similar vulnerabilities.

5. Impact on European Cybersecurity Landscape

The presence of this vulnerability in a widely-used software like ChurchCRM poses a significant risk to organizations, particularly those in the religious and non-profit sectors. Given the high CVSS score, the vulnerability could be exploited to compromise sensitive data, leading to data breaches, financial loss, and reputational damage. The European cybersecurity landscape must prioritize awareness and prompt patching to prevent widespread exploitation.

6. Technical Details for Security Professionals

Vulnerability Details:

• Affected File: EventAttendance.php
• Vulnerable Parameter: 'Event'
• Exploitation Method: Direct interpolation of the 'Event' parameter into SQL queries without sanitization.

Example of Vulnerable Code:

$event = $_GET['Event'];
$query = "SELECT * FROM events WHERE event_id = $event";

Mitigation Example:

$event = $_GET['Event'];
$stmt = $pdo->prepare("SELECT * FROM events WHERE event_id = :event");
$stmt->bindParam(':event', $event, PDO::PARAM_INT);
$stmt->execute();

References:

• GitHub Issue
• GitHub Security Advisory

Aliases:

• CVE-2024-53438

Assigner:

• Mitre

EPSS:

• N/A

ENISA ID:

• Product: n/a
• Vendor: n/a

By addressing this vulnerability promptly and thoroughly, organizations can significantly reduce the risk of SQL injection attacks and protect their data and systems.