CVE-2020-29142 : Vulnerability Insights and Analysis
Learn about CVE-2020-29142, a SQL injection vulnerability in OpenEMR before 5.0.2.5 allowing remote attackers to execute arbitrary SQL commands. Find mitigation steps and prevention measures.
OpenEMR before 5.0.2.5 is vulnerable to SQL injection, allowing remote attackers to execute arbitrary SQL commands.
Understanding CVE-2020-29142
A SQL injection vulnerability in OpenEMR before version 5.0.2.5 enables authenticated remote attackers to execute malicious SQL commands.
What is CVE-2020-29142?
The vulnerability exists in interface/usergroup/usergroup_admin.php in OpenEMR, triggered by the schedule_facility parameter when restrict_user_facility=on in global settings.
The Impact of CVE-2020-29142
- Remote authenticated attackers can execute arbitrary SQL commands
- Exploitation can lead to unauthorized access, data manipulation, or data exfiltration
Technical Details of CVE-2020-29142
The technical aspects of the vulnerability are as follows:
Vulnerability Description
- Type: SQL injection
- Location: interface/usergroup/usergroup_admin.php
- Trigger: schedule_facility parameter
Affected Systems and Versions
- OpenEMR versions before 5.0.2.5
Exploitation Mechanism
- Attackers exploit the vulnerability by manipulating the schedule_facility parameter
Mitigation and Prevention
Protect your system from CVE-2020-29142 with these measures:
Immediate Steps to Take
- Update OpenEMR to version 5.0.2.5 or later
- Review and restrict user permissions
- Monitor and analyze SQL queries for unusual behavior
Long-Term Security Practices
- Implement input validation and parameterized queries
- Conduct regular security audits and penetration testing
Patching and Updates
- Apply security patches promptly
- Stay informed about OpenEMR security updates