CVE-2021-41323 : Security Advisory and Response
Learn about CVE-2021-41323, a vulnerability in Pydio Cells 2.2.9 allowing remote authenticated users to overwrite personal or any user's files. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A directory traversal vulnerability in Pydio Cells 2.2.9 allows remote authenticated users to overwrite personal or any user's files.
Understanding CVE-2021-41323
What is CVE-2021-41323?
Directory traversal in the Compress feature in Pydio Cells 2.2.9 enables authenticated remote users to overwrite personal or any user's files through the format parameter.
The Impact of CVE-2021-41323
This vulnerability can lead to unauthorized modification or deletion of files, potentially compromising sensitive data stored within Pydio Cells.
Technical Details of CVE-2021-41323
Vulnerability Description
The vulnerability allows remote authenticated users to overwrite personal or any user's files via the format parameter in Pydio Cells 2.2.9.
Affected Systems and Versions
- Product: Pydio Cells
- Vendor: Pydio
- Version: 2.2.9
Exploitation Mechanism
The exploitation involves leveraging the directory traversal issue in the Compress feature to manipulate files and potentially perform unauthorized actions.
Mitigation and Prevention
Immediate Steps to Take
- Users should update Pydio Cells to a patched version immediately.
- Restrict access to vulnerable systems to authorized personnel only.
Long-Term Security Practices
- Regularly monitor and audit file access and modifications within Pydio Cells.
- Implement strong authentication measures to prevent unauthorized access.
- Educate users on secure file handling practices.
Patching and Updates
Ensure timely installation of security patches and updates provided by Pydio to address the directory traversal vulnerability.