CVE-2020-1745 : What You Need to Know
Learn about CVE-2020-1745 impacting Undertow AJP connector. Discover the vulnerability, its impact, affected versions, and mitigation steps to secure your systems.
Undertow versions up to 2.0.29.Final are affected by a file inclusion vulnerability in the AJP connector.
Understanding CVE-2020-1745
A file inclusion vulnerability in Undertow Apache Tomcat AJP connector version 2.0.29.Final.
What is CVE-2020-1745?
CVE-2020-1745 is a file inclusion vulnerability present in Undertow version 2.0.29.Final and earlier, allowing an unauthorized remote attacker to read sensitive files.
The Impact of CVE-2020-1745
- Attack Vector: Network
- Attack Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: Low
- Availability Impact: Low
- Privileges Required: None
- Severity Score: 8.6 (High)
Technical Details of CVE-2020-1745
Undertow vulnerability details and affected systems.
Vulnerability Description
A file inclusion flaw in the AJP connector with the default port of 8009 allows for unauthorized access to web application files, potentially leading to remote code execution.
Affected Systems and Versions
- Product: Undertow
- Vendor: undertow-io
- Versions Affected: <= 2.0.29.Final
Exploitation Mechanism
The vulnerability can be exploited remotely by an unauthenticated attacker to read and upload malicious JSP code, potentially executing code on the targeted server.
Mitigation and Prevention
Steps to address and prevent CVE-2020-1745.
Immediate Steps to Take
- Upgrade Undertow to version 2.0.30.Final or later.
- Monitor server logs for suspicious activities.
- Implement proper access controls and file upload restrictions.
Long-Term Security Practices
- Regularly update and patch software to address vulnerabilities.
- Conduct security audits and penetration testing to identify weaknesses.
Patching and Updates
- Apply security patches promptly to eliminate known vulnerabilities.