CVE-2019-15612 : Vulnerability Insights and Analysis
Learn about CVE-2019-15612 affecting Nextcloud Server 15.0.2. Find out how a bug causes issues with 2FA logins after password resets and how to mitigate the vulnerability.
Nextcloud Server 15.0.2 has a vulnerability that affects the expiration of pending 2FA logins when a user's password is reset.
Understanding CVE-2019-15612
A bug in Nextcloud Server 15.0.2 causes issues with pending 2FA logins when a user resets their password.
What is CVE-2019-15612?
The vulnerability in Nextcloud Server 15.0.2 prevents pending 2FA logins from being correctly expired after a user resets their password.
The Impact of CVE-2019-15612
The vulnerability can potentially allow unauthorized access to user accounts due to the incorrect expiration of 2FA logins.
Technical Details of CVE-2019-15612
Nextcloud Server 15.0.2 vulnerability details.
Vulnerability Description
The bug in Nextcloud Server 15.0.2 causes pending 2FA logins to remain active even after a user resets their password, leading to a session fixation vulnerability.
Affected Systems and Versions
- Product: Nextcloud Server
- Version: 15.0.3
Exploitation Mechanism
Attackers can exploit this vulnerability by taking advantage of the session fixation issue to gain unauthorized access to user accounts.
Mitigation and Prevention
Protect your system from CVE-2019-15612.
Immediate Steps to Take
- Upgrade Nextcloud Server to a patched version that addresses the 2FA login expiration issue.
- Encourage users to reset their passwords regularly to mitigate potential risks.
Long-Term Security Practices
- Implement multi-factor authentication to enhance account security.
- Regularly monitor and audit user login activities for any suspicious behavior.
Patching and Updates
- Stay informed about security advisories from Nextcloud and apply patches promptly to address known vulnerabilities.