CVE-2021-40353 : Security Advisory and Response

This CVE-2021-40353 article provides insights into a SQL injection vulnerability in the openSIS application when using MySQL or MariaDB as the database.

Understanding CVE-2021-40353

This section delves into the details of the CVE-2021-40353 vulnerability.

What is CVE-2021-40353?

A SQL injection vulnerability in version 8.0 of openSIS allows attackers to execute SQL commands via the index.php USERNAME parameter.

The Impact of CVE-2021-40353

The vulnerability poses a significant security risk, potentially leading to data manipulation, exfiltration, or unauthorized access.

Technical Details of CVE-2021-40353

Explore the technical aspects of CVE-2021-40353 in this section.

Vulnerability Description

The flaw occurs in openSIS version 8.0 when utilizing MySQL or MariaDB as the application database, enabling SQL injection attacks.

Affected Systems and Versions

Affected Version: 8.0 of openSIS
Database: MySQL or MariaDB

Exploitation Mechanism

Attackers exploit the SQL injection vulnerability by injecting malicious SQL commands via the index.php USERNAME parameter.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-40353.

Immediate Steps to Take

Update to the latest version of openSIS to patch the vulnerability.
Monitor and restrict user inputs to prevent SQL injection attacks.

Long-Term Security Practices

Employ parameterized queries to mitigate SQL injection vulnerabilities.
Conduct regular security audits and testing for vulnerabilities.

Patching and Updates

Regularly apply security patches and updates to the openSIS application to address known vulnerabilities.