CVE-2020-5280 : What You Need to Know
Learn about CVE-2020-5280, a local file inclusion vulnerability in http4s versions before 0.18.26, 0.20.20, and 0.21.2. Understand the impact, affected systems, and mitigation steps to secure your environment.
http4s before versions 0.18.26, 0.20.20, and 0.21.2 has a local file inclusion vulnerability affecting various services. Learn more about the impact, technical details, and mitigation steps.
Understanding CVE-2020-5280
What is CVE-2020-5280?
CVE-2020-5280 is a local file inclusion vulnerability in http4s versions prior to 0.18.26, 0.20.20, and 0.21.2. This vulnerability can lead to exposing resources outside the configured location.
The Impact of CVE-2020-5280
The vulnerability has a CVSS base score of 7.6, with high severity due to its potential for high confidentiality impact.
Technical Details of CVE-2020-5280
Vulnerability Description
- Incorrect URI normalization in http4s versions before 0.18.26, 0.20.20, and 0.21.2
- Requests with path info containing ../ or // can expose resources outside the intended location
Affected Systems and Versions
- Products: http4s
- Affected Versions: < 0.18.26, >= 0.19.0, < 0.20.20, >= 0.21.0, < 0.21.2
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: Required
Mitigation and Prevention
Immediate Steps to Take
- Update http4s to versions 0.18.26, 0.20.20, or 0.21.2
- Avoid using deprecated version 0.19.0
Long-Term Security Practices
- Regularly monitor and update software dependencies
- Implement proper input validation and sanitization practices
Patching and Updates
- Apply patches provided by http4s to address the vulnerability