EUVD-2023-30605

Comprehensive Technical Analysis of EUVD-2023-30605

1. Vulnerability Assessment and Severity Evaluation

The EUVD entry EUVD-2023-30605 describes a SQL injection vulnerability in the com.xnx3.wangmarket.plugin.dataDictionary.controller.DataDictionaryPluginController.java file of wangmarket CMS version 4.10. This vulnerability allows remote attackers to execute arbitrary SQL commands via the TableName parameter to the /plugin/dataDictionary/tableView.do endpoint.

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The CVSS score of 9.8 indicates a critical vulnerability due to the following factors:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Unchanged (U)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): High (H)

This vulnerability is highly exploitable and can lead to severe impacts on confidentiality, integrity, and availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: Attackers can exploit this vulnerability over the network without requiring any special privileges or user interaction.
• SQL Injection: By crafting malicious SQL queries and injecting them through the TableName parameter, attackers can manipulate the database.

Exploitation Methods:

• Data Exfiltration: Attackers can extract sensitive information from the database.
• Data Manipulation: Attackers can modify or delete database records.
• Unauthorized Access: Attackers can gain unauthorized access to the database and potentially escalate privileges.

3. Affected Systems and Software Versions

Affected Software:

• wangmarket CMS version 4.10

Affected Systems:

• Any system running wangmarket CMS version 4.10 with the vulnerable DataDictionaryPluginController.java file.

4. Recommended Mitigation Strategies

Immediate Actions:

• Patching: Apply the latest security patches provided by the vendor.
• Input Validation: Implement strict input validation and sanitization for the TableName parameter.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
• Web Application Firewall (WAF): Deploy a WAF to detect and block malicious SQL injection attempts.

Long-Term Actions:

• Regular Security Audits: Conduct regular security audits and code reviews to identify and mitigate similar vulnerabilities.
• Security Training: Provide security training for developers to understand and prevent SQL injection vulnerabilities.
• Monitoring: Implement continuous monitoring and logging to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

The presence of such a critical vulnerability in a widely-used CMS like wangmarket can have significant implications for the European cybersecurity landscape:

• Data Breaches: Organizations using wangmarket CMS may face data breaches, leading to the exposure of sensitive information.
• Compliance Issues: Non-compliance with data protection regulations such as GDPR can result in legal and financial penalties.
• Reputation Damage: Organizations may suffer reputational damage due to security incidents.
• Operational Disruptions: Attacks exploiting this vulnerability can lead to operational disruptions and financial losses.

6. Technical Details for Security Professionals

Vulnerable Code: The vulnerability is located in the DataDictionaryPluginController.java file, specifically in the handling of the TableName parameter.

Exploit Example: An attacker can craft a malicious SQL query and inject it through the TableName parameter:

TableName=users; DROP TABLE users;

Mitigation Code Example: To mitigate this vulnerability, use parameterized queries:

String query = "SELECT * FROM ? WHERE condition = ?";
PreparedStatement pstmt = connection.prepareStatement(query);
pstmt.setString(1, tableName);
pstmt.setString(2, condition);
ResultSet rs = pstmt.executeQuery();

References:

• GitHub Issue: https://github.com/xnx3/wangmarket/issues/7
• CVE ID: CVE-2023-26813
• GSD ID: GSD-2023-26813

Conclusion: The SQL injection vulnerability in wangmarket CMS 4.10 is critical and requires immediate attention. Organizations should prioritize patching and implementing robust security measures to mitigate the risk. Continuous monitoring and regular security audits are essential to maintain a strong cybersecurity posture.