CVE-2021-43831 Explained : Impact and Mitigation
Learn about CVE-2021-43831, a high-severity vulnerability in Gradio < 2.5.0 allowing unauthorized access to host computer files. Follow mitigation steps for enhanced security.
Gradio is an open-source framework for building interactive machine learning models and demos. In versions prior to 2.5.0, a vulnerability exists that allows unauthorized access to host computer files through Gradio interfaces.
Understanding CVE-2021-43831
What is CVE-2021-43831?
Gradio versions below 2.5.0 have a security issue where users receiving a Gradio link can potentially access any files on the host computer, bypassing file path restrictions.
The Impact of CVE-2021-43831
The vulnerability poses a high severity risk with a CVSS base score of 7.7, compromising confidentiality by allowing unauthorized access to sensitive files.
Technical Details of CVE-2021-43831
Vulnerability Description
- Path traversal vulnerability (CWE-22) due to improper file path restriction in Gradio.
Affected Systems and Versions
- Vulnerable versions: Gradio < 2.5.0
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Gradio to version 2.5.0 or newer.
- Avoid sharing Gradio links with untrusted users.
Long-Term Security Practices
- Regularly update software and monitor for security patches.
- Educate users on the risks associated with sharing sensitive information.
Patching and Updates
- Apply security patches promptly to prevent exploit of vulnerabilities.