CVE-2021-37803 : Security Advisory and Response

An SQL Injection vulnerability has been identified in the Sourcecodester Online Covid Vaccination Scheduler System 1.0, specifically through the username field in lognin.php.

Understanding CVE-2021-37803

This CVE pertains to an SQL Injection vulnerability present in the Online Covid Vaccination Scheduler System 1.0.

What is CVE-2021-37803?

This CVE describes a security flaw in the online system that allows attackers to execute malicious SQL queries through the username input, potentially leading to unauthorized access or data leakage.

The Impact of CVE-2021-37803

Exploiting this vulnerability can result in unauthorized access to sensitive information stored in the system, manipulation of data, or even a complete system compromise.

Technical Details of CVE-2021-37803

The technical details include vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability allows attackers to inject malicious SQL queries through the username field in lognin.php, opening the system to unauthorized data manipulation.

Affected Systems and Versions

Sourcecodester Online Covid Vaccination Scheduler System 1.0 is affected by this vulnerability.

Exploitation Mechanism

By injecting SQL commands into the username field, threat actors can bypass authentication mechanisms and access confidential data stored in the system.

Mitigation and Prevention

To address CVE-2021-37803, immediate steps and long-term security practices are recommended to prevent exploitation.

Immediate Steps to Take

It is crucial to apply security patches or updates provided by the system vendor to mitigate the vulnerability. Additionally, system administrators should restrict access to sensitive areas and validate user inputs to prevent SQL Injection attacks.

Long-Term Security Practices

Implementing strict input validation, using parameterized queries, and conducting regular security assessments can help enhance the overall security posture of the system.

Patching and Updates

Regularly monitor for security updates released by Sourcecodester and apply them promptly to protect the system from potential threats.