CVE-2021-3239 Scanner

E-Learning System is widely used by educational institutions for managing online courses, tracking student progress, and facilitating communication between students and educators. Developed for ease of use, it offers educational content delivery, collaboration tools, and assessment features. Educational administrators and IT professionals deploy these systems in schools and universities, seeking to enhance learning experiences and streamline administrative tasks. The system is used both as a standalone platform and integrated within larger educational ecosystems. This software is valued for its flexibility and capability in supporting diverse educational strategies across different educational settings. E-Learning platforms also often extend functionality through plugins and add-ons relevant to specific educational methods.

The SQL Injection (SQLi) vulnerability allows attackers to manipulate database queries, execute unauthorized commands, and potentially gain access to sensitive data. This type of vulnerability typically arises from insufficient input validation and can lead to security breaches and data leaks. In E-Learning System version 1.0, unsanitized input can allow remote attackers to execute arbitrary code, leading to potential control over the system. SQL injections can target various vulnerabilities within a database, exploiting parameters by inserting malicious SQL statements. Malicious actors use this vulnerability to alter or retrieve unauthorized data from the database or even escalate privileges. Such breaches can lead to significant data leaks, risking privacy and data integrity for institutions reliant on E-Learning platforms.

In E-Learning System 1.0, the SQL Injection vulnerability can be exploited via the unsanitized id' parameter within the URL, accessible through HTTP GET requests. Attackers can inject malicious SQL commands that the application's back-end database unwittingly executes. These commands can be used to extract data, modify database elements, or manipulate the application to expose confidential information or allow unauthorized access. By leveraging this vulnerability, an attacker can introduce UNION or SELECT queries to aggregate unauthorized data and fetch cryptographic checksums, signifying potential data exposure. The end points for possible exploitation are typically located in the lesson.php template of the E-Learning System platform. Successful execution can lead to the compromise of the entire server hosting the E-Learning solution.

When leveraged, the SQL Injection vulnerability can lead to full compromise of the E-Learning System 1.0. Attackers may gain administrative privileges, execute commands, and potentially obtain sensitive institutional or user data. Such a compromise might allow attackers to introduce malware or alter course content, misinforming users. Data integrity is compromised, leading to possible downtime or manipulation of educational records, impacting both educator and student performance within the platform. Unauthorized access to personal information might result in privacy violations or identity theft. Additionally, the system's reliability and reputation could be severely undermined.

REFERENCES

• https://www.exploit-db.com/exploits/49434
• https://nvd.nist.gov/vuln/detail/CVE-2021-3239