CVE-2020-12848 : Security Advisory and Response
Learn about CVE-2020-12848, a vulnerability in Pydio Cells 2.0.4 allowing unauthorized access through a hidden shared user account. Find out the impact, affected systems, exploitation, and mitigation steps.
Pydio Cells 2.0.4 allows unauthorized access through a hidden shared user account created when an authenticated user generates a public link. This vulnerability enables an attacker to perform actions beyond the intended scope of the public share link.
Understanding CVE-2020-12848
Pydio Cells 2.0.4 vulnerability allows unauthorized access through a hidden shared user account created during the public link generation process.
What is CVE-2020-12848?
The flaw in Pydio Cells 2.0.4 permits an anonymous user to obtain login credentials for a hidden account created when an authenticated user shares a file via a public link. This hidden account grants unauthorized access to perform actions not permitted by the public share link.
The Impact of CVE-2020-12848
The vulnerability in Pydio Cells 2.0.4 can lead to unauthorized access and potential misuse of the web application, compromising data security and integrity.
Technical Details of CVE-2020-12848
Pydio Cells 2.0.4 vulnerability technical specifics.
Vulnerability Description
Once an authenticated user shares a file via a public link, a hidden shared user account with a random username is created in the backend. An attacker who obtains the hidden account credentials can access the web application beyond the public link's limitations.
Affected Systems and Versions
- System: Pydio Cells 2.0.4
- Versions: All
Exploitation Mechanism
The vulnerability allows an attacker to obtain the hidden account credentials by accessing a valid public link, enabling unauthorized access to the web application.
Mitigation and Prevention
Protecting against CVE-2020-12848.
Immediate Steps to Take
- Disable public link sharing in Pydio Cells 2.0.4 until a patch is available.
- Monitor for any unauthorized access or unusual activities on the web application.
Long-Term Security Practices
- Regularly update Pydio Cells to the latest version to patch known vulnerabilities.
- Implement multi-factor authentication to enhance access security.
Patching and Updates
- Apply the latest security patches and updates provided by Pydio Cells to address the vulnerability and enhance system security.