CVE-2021-41679 : Exploit Details and Defense Strategies
Learn about CVE-2021-41679, a critical SQL injection flaw in openSIS version 8.0 allowing attackers to execute malicious SQL commands. Discover impact, technical details, and mitigation steps.
A SQL injection vulnerability in openSIS version 8.0 allows attackers to execute SQL commands via a specific parameter.
Understanding CVE-2021-41679
This CVE identifies a critical SQL injection flaw in openSIS version 8.0 when utilizing MySQL or MariaDB as the backend database.
What is CVE-2021-41679?
The vulnerability enables malicious actors to perform SQL injection attacks by exploiting the /opensis/modules/grades/InputFinalGrades.php, period parameter.
The Impact of CVE-2021-41679
Exploiting this vulnerability can lead to unauthorized data access, data manipulation, and potentially complete system compromise.
Technical Details of CVE-2021-41679
The technical aspects of this CVE provide insights into the vulnerability, affected systems, and the exploitation method.
Vulnerability Description
An SQL injection weakness in openSIS version 8.0 allows threat actors to execute arbitrary SQL commands through a specific parameter.
Affected Systems and Versions
- Product: Not Applicable
- Vendor: Not Applicable
- Vulnerable Version: 8.0
Exploitation Mechanism
Attackers can leverage the SQL injection by sending crafted SQL queries through the period parameter of the /opensis/modules/grades/InputFinalGrades.php endpoint.
Mitigation and Prevention
Protecting systems from CVE-2021-41679 involves immediate actions and long-term security measures.
Immediate Steps to Take
- Apply security patches or updates from the openSIS provider.
- Implement input validation to sanitize user inputs and prevent SQL injection.
- Monitor and analyze SQL queries for any unusual patterns.
Long-Term Security Practices
- Conduct regular security assessments and penetration testing to identify vulnerabilities.
- Educate developers and system administrators on secure coding practices.
- Utilize Web Application Firewalls (WAFs) to filter and block malicious traffic.
Patching and Updates
Ensure timely installation of patches and updates provided by openSIS to address the SQL injection vulnerability.