CVE-2020-1757 : Vulnerability Insights and Analysis
Learn about CVE-2020-1757, a critical vulnerability in Red Hat's Undertow versions prior to 2.0.30.SP1 and 2.1.0.Final. Find out the impact, affected systems, and mitigation steps.
A vulnerability in Red Hat's Undertow versions prior to 2.0.30.SP1 and 2.1.0.Final could allow a security bypass exploit.
Understanding CVE-2020-1757
What is CVE-2020-1757?
A flaw in Undertow versions could lead to incorrect path normalization by the Servlet container, potentially enabling a security bypass.
The Impact of CVE-2020-1757
The vulnerability poses a high severity risk with confidentiality and integrity impacts.
Technical Details of CVE-2020-1757
Vulnerability Description
The Servlet container in affected Undertow versions truncates paths after a semicolon, allowing malicious application mapping.
Affected Systems and Versions
- All undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1
- All undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
Mitigation and Prevention
Immediate Steps to Take
- Update to Undertow version 2.0.30.SP1 or 2.1.0.Final
- Monitor for any unauthorized access
Long-Term Security Practices
- Regularly update software and apply security patches
- Implement network segmentation and access controls
- Conduct periodic security audits
Patching and Updates
- Red Hat has provided patches to address the vulnerability