CVE-2020-13565 : What You Need to Know
Learn about CVE-2020-13565, an open redirect vulnerability in phpGACL 3.3.7, OpenEMR 5.0.2, and OpenEMR development version 6.0.0. Understand the impact, technical details, and mitigation steps.
An open redirect vulnerability exists in phpGACL 3.3.7, OpenEMR 5.0.2, and OpenEMR development version 6.0.0. This vulnerability allows attackers to redirect users to malicious URLs by manipulating HTTP requests.
Understanding CVE-2020-13565
This CVE involves an open redirect vulnerability in multiple versions of phpGACL and OpenEMR, potentially leading to security risks.
What is CVE-2020-13565?
An open redirect vulnerability in phpGACL 3.3.7, OpenEMR 5.0.2, and OpenEMR development version 6.0.0 allows attackers to craft URLs that redirect users to arbitrary sites.
The Impact of CVE-2020-13565
- CVSS Base Score: 6.1 (Medium)
- Attack Vector: Network
- Attack Complexity: Low
- User Interaction: Required
- Scope: Changed
- Confidentiality and Integrity Impact: Low
- Privileges Required: None
- Availability Impact: None
Technical Details of CVE-2020-13565
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability lies in the return_page redirection functionality of phpGACL 3.3.7, OpenEMR 5.0.2, and OpenEMR development version 6.0.0. Attackers can exploit this to redirect users to malicious URLs.
Affected Systems and Versions
- Affected Versions: OpenEMR 5.0.2, OpenEMR development version 6.0.0, phpGACL 3.3.7
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted HTTP requests to the affected systems, tricking users into visiting malicious sites.
Mitigation and Prevention
Protecting systems from CVE-2020-13565 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendors promptly.
- Educate users about the risks of clicking on unknown or suspicious links.
Long-Term Security Practices
- Implement URL validation mechanisms to prevent open redirect vulnerabilities.
- Regularly update and monitor security configurations to detect and mitigate similar issues.
Patching and Updates
- Regularly check for security updates and patches from phpGACL and OpenEMR to address this vulnerability.