CVE-2021-42169 : Exploit Details and Defense Strategies

The Simple Payroll System with Dynamic Tax Bracket in PHP using SQLite Free Source Code is vulnerable to remote SQL injection, allowing bypass of authentication for the admin account.

Understanding CVE-2021-42169

The vulnerability in a payroll system allows malicious actors to inject SQL queries to bypass authentication.

What is CVE-2021-42169?

The Simple Payroll System with Dynamic Tax Bracket in PHP using SQLite Free Source Code is susceptible to a remote SQL injection attack, enabling unauthorized access to the admin account.

The Impact of CVE-2021-42169

Remote attackers can exploit the vulnerability to bypass authentication for the admin account.

Technical Details of CVE-2021-42169

The following are the technical details of the vulnerability.

Vulnerability Description

The parameter 'username' in the login form is inadequately protected, allowing SQL injection attacks.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

Attackers can input malicious SQL queries in the 'username' parameter to bypass authentication.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the vulnerability.

Immediate Steps to Take

Implement input validation and parameterized queries to prevent SQL injection.
Regularly update and patch the application to include security fixes.
Educate users about the risks of SQL injection and how to create strong passwords.

Long-Term Security Practices

Conduct regular security audits and penetration tests.
Monitor logs for any suspicious activities.
Stay informed about the latest security threats and best practices.

Patching and Updates

Apply patches and updates from the software vendor to fix the vulnerability.