CVE-2013-6873 in Online Test Management System
Summary
by MITRE
SQL injection vulnerability in Testa Online Test Management System (OTMS) 2.0.0.2 allows remote attackers to execute arbitrary SQL commands via the test_id parameter.
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Analysis
by VulDB Data Team • 02/20/2025
The CVE-2013-6873 vulnerability represents a critical SQL injection flaw within the Testa Online Test Management System version 2.0.0.2, a web-based platform designed for managing educational assessments and examinations. This vulnerability exists in the application's handling of user input parameters, specifically the test_id parameter that is processed during various administrative operations. The flaw allows remote attackers to inject malicious SQL code through the web interface without requiring authentication or prior access to the system. The vulnerability stems from insufficient input validation and sanitization mechanisms within the application's database interaction layer, where user-supplied data is directly concatenated into SQL queries without proper escaping or parameterization techniques. This type of vulnerability falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection vulnerabilities that occur when untrusted data is incorporated into SQL commands without adequate protection measures.
The technical exploitation of this vulnerability enables attackers to perform a wide range of malicious activities including but not limited to unauthorized data access, data modification, and potential complete system compromise. When an attacker manipulates the test_id parameter with malicious SQL payloads, the application processes these inputs directly within database queries, allowing for arbitrary command execution against the underlying database engine. This can result in unauthorized access to sensitive educational data including student records, test results, exam configurations, and administrative credentials. The vulnerability's remote nature means that attackers can exploit it from anywhere on the internet without requiring physical access to the server or network infrastructure. The impact extends beyond simple data theft as attackers could potentially escalate privileges, create backdoors, or even delete critical database tables that contain essential test management information. The vulnerability's severity is amplified by the fact that it affects the core functionality of the test management system, potentially compromising the integrity and confidentiality of entire educational assessment programs.
From an operational perspective, this vulnerability poses significant risks to educational institutions and organizations relying on the Testa OTMS platform for their assessment management. The exposure of sensitive student and examination data could lead to privacy violations, regulatory compliance issues, and potential legal consequences under data protection legislation such as gdpr or fERPA. The attack surface is particularly concerning as the vulnerability affects the administrative interfaces where privileged users manage test configurations and student assessments. Organizations may face reputational damage and loss of trust from students, parents, and educational authorities if such vulnerabilities are exploited. The vulnerability also creates opportunities for attackers to disrupt educational services by modifying test parameters, altering scores, or preventing legitimate access to the system. The exploitation process is relatively straightforward for skilled attackers, requiring only basic knowledge of SQL injection techniques and the ability to manipulate web application parameters through standard HTTP requests. This makes the vulnerability particularly dangerous as it can be exploited by both sophisticated threat actors and less experienced attackers who may have access to automated exploitation tools.
Mitigation strategies for CVE-2013-6873 should focus on implementing proper input validation and parameterized queries to prevent SQL injection attacks. Organizations should immediately upgrade to patched versions of the Testa OTMS platform where available, as this vulnerability was addressed in subsequent releases. The implementation of web application firewalls and input sanitization mechanisms can provide additional layers of protection during the upgrade process. Security measures should include proper parameter binding in database queries, input validation on all user-supplied parameters, and regular security testing including penetration testing and code reviews. The principle of least privilege should be applied to database accounts used by the application, limiting their capabilities to only essential operations. Additionally, organizations should implement comprehensive logging and monitoring systems to detect suspicious activities related to database access patterns and parameter manipulation attempts. Regular security awareness training for administrators and developers can help prevent similar vulnerabilities in custom applications and ensure proper coding practices are followed. The vulnerability demonstrates the critical importance of secure coding practices and regular security assessments in web applications, particularly those handling sensitive educational data. Organizations should also consider implementing database activity monitoring and anomaly detection systems to identify potential exploitation attempts and respond to incidents promptly.