EUVD-2025-7619

Comprehensive Technical Analysis of EUVD-2025-7619

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability EUVD-2025-7619 pertains to an SQL Injection flaw in the GetLateOrMissingIssues function within the C4/Serials.pm module of Koha versions prior to 24.11.02. This flaw allows an attacker to inject malicious SQL code via the supplierid or serialid parameters in the /serials/lateissues-export.pl script.

Severity Evaluation:

• Base Score: 10.0 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

The CVSS score of 10.0 indicates a critical vulnerability. The vector string breaks down as follows:

• AV:N (Attack Vector: Network) - The vulnerability is exploitable over the network.
• AC:L (Attack Complexity: Low) - The attack requires low complexity to exploit.
• PR:N (Privileges Required: None) - No privileges are required to exploit the vulnerability.
• UI:N (User Interaction: None) - No user interaction is required.
• S:C (Scope: Changed) - The vulnerability affects a different security scope.
• C:H (Confidentiality: High) - There is a high impact on confidentiality.
• I:H (Integrity: High) - There is a high impact on integrity.
• A:H (Availability: High) - There is a high impact on availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: An attacker can exploit this vulnerability remotely over the network.
• SQL Injection: The attacker can inject malicious SQL code through the supplierid or serialid parameters.

Exploitation Methods:

• Direct SQL Injection: By crafting a specially designed URL or form input, an attacker can inject SQL commands that manipulate the database.
• Automated Tools: Attackers may use automated tools to scan for and exploit SQL injection vulnerabilities.

3. Affected Systems and Software Versions

Affected Software:

• Koha versions prior to 24.11.02

Affected Systems:

• Any system running the vulnerable versions of Koha, particularly those with the /serials/lateissues-export.pl script exposed to the network.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Upgrade: Upgrade to Koha version 24.11.02 or later, which includes the patch for this vulnerability.
• Input Validation: Implement strict input validation and sanitization for the supplierid and serialid parameters.
• Prepared Statements: Use prepared statements and parameterized queries to prevent SQL injection.

Long-Term Mitigation:

• Regular Patching: Ensure that all software, including Koha, is regularly updated and patched.
• Security Audits: Conduct regular security audits and vulnerability assessments.
• Web Application Firewalls (WAF): Deploy WAFs to detect and block SQL injection attempts.

5. Impact on European Cybersecurity Landscape

Impact Assessment:

• Widespread Use: Koha is widely used in libraries and educational institutions across Europe. This vulnerability could lead to significant data breaches and service disruptions.
• Data Integrity: Compromised systems could result in the loss of integrity of library records and user data.
• Compliance: Organizations may face compliance issues with data protection regulations such as GDPR if sensitive data is compromised.

Regulatory and Compliance Considerations:

• GDPR: Ensure that any data breach is reported to the relevant authorities within the required timeframe.
• Incident Response: Have a robust incident response plan in place to mitigate the impact of any potential breaches.

6. Technical Details for Security Professionals

Vulnerability Details:

• Module: C4/Serials.pm
• Function: GetLateOrMissingIssues
• Parameters: supplierid, serialid
• Script: /serials/lateissues-export.pl

Exploitation Example: An attacker could craft a URL like:

http://vulnerable-koha-instance/serials/lateissues-export.pl?supplierid=1'; DROP TABLE users;--

This would execute the SQL command DROP TABLE users;, potentially deleting the users table from the database.

Detection and Monitoring:

• Log Analysis: Monitor logs for unusual SQL queries or error messages indicating SQL injection attempts.
• Intrusion Detection Systems (IDS): Use IDS to detect and alert on suspicious network activity.

References:

• Koha Bug Report
• Koha Release Notes

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