Description
Efence login function has insufficient validation for user input. An unauthenticated remote attacker can exploit this vulnerability to inject arbitrary SQL commands to access, modify or delete database.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2023-27002
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2023-27002 pertains to insufficient validation of user input in the login function of the Efence software. This flaw allows an unauthenticated remote attacker to inject arbitrary SQL commands, potentially leading to unauthorized access, modification, or deletion of database contents. The CVSS (Common Vulnerability Scoring System) base score of 9.8 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 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.
- Privileges Required (PR): None (N) - No privileges are required to exploit the vulnerability.
- User Interaction (UI): None (N) - No user interaction is required.
- Scope (S): Unchanged (U) - The vulnerability does not affect resources beyond the security scope managed by the security authority.
- Confidentiality (C): High (H) - There is a high impact on the confidentiality of the data.
- Integrity (I): High (H) - There is a high impact on the integrity of the data.
- Availability (A): High (H) - There is a high impact on the availability of the data.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector is SQL injection, where an attacker can insert malicious SQL statements into an input field. Potential exploitation methods include:
- SQL Injection: Crafting SQL queries to extract sensitive data, modify database entries, or delete critical information.
- Authentication Bypass: Using SQL injection to bypass authentication mechanisms and gain unauthorized access.
- Data Exfiltration: Extracting large volumes of data from the database.
- Data Integrity Compromise: Modifying database entries to disrupt normal operations or introduce malicious content.
3. Affected Systems and Software Versions
The vulnerability affects the Efence software, specifically version 1.2.58 with database version 28. The software is developed by Thinking Software Technology Co., Ltd. Organizations using this specific version of Efence 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:
- Immediate Patching: Apply the latest security patches provided by the vendor.
- Input Validation: Implement robust input validation mechanisms to sanitize user inputs and prevent SQL injection.
- Parameterized Queries: Use parameterized queries or prepared statements to ensure that SQL code is not directly executed from user inputs.
- Web Application Firewalls (WAF): Deploy WAFs to detect and block SQL injection attempts.
- Regular Audits: Conduct regular security audits and penetration testing to identify and address similar vulnerabilities.
- User Education: Educate users about the risks of SQL injection and best practices for secure coding.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant threat to organizations within the European Union that rely on the Efence software. Given the critical nature of the vulnerability, it could lead to data breaches, financial losses, and reputational damage. The European cybersecurity landscape must prioritize addressing such vulnerabilities to maintain the integrity and security of digital infrastructure.
6. Technical Details for Security Professionals
- Vulnerability Identification: The vulnerability is identified by EUVD-2023-27002, CVE-2023-22900, and GSD-2023-22900.
- Affected Product: Efence version 1.2.58 DB.ver 28.
- Vendor: Thinking Software Technology Co., Ltd.
- References: For additional information, refer to the TWCERT advisory at https://www.twcert.org.tw/tw/cp-132-6885-d679e-1.html.
- Mitigation Steps:
- Patch Management: Ensure that the latest patches are applied.
- Code Review: Conduct a thorough code review to identify and fix input validation issues.
- Security Tools: Utilize tools like SQLMap for automated SQL injection testing.
- Monitoring: Implement continuous monitoring to detect and respond to suspicious activities.
By addressing this vulnerability promptly and effectively, organizations can significantly reduce the risk of SQL injection attacks and enhance their overall cybersecurity posture.