CVE-2017-0892 : Vulnerability Insights and Analysis
Learn about CVE-2017-0892 affecting Nextcloud Server before 11.0.3, allowing unauthorized access to users' files. Find mitigation steps and best practices for enhanced security.
Nextcloud Server before version 11.0.3 is susceptible to an improper authorization vulnerability that allows unauthorized access to users' files through an application-specific password bypassing proper session handling.
Understanding CVE-2017-0892
This CVE entry highlights a security flaw in Nextcloud Server that could compromise the confidentiality and integrity of users' files.
What is CVE-2017-0892?
The vulnerability in Nextcloud Server before 11.0.3 enables unauthorized access to users' files by allowing an application-specific password to bypass proper session handling.
The Impact of CVE-2017-0892
The security issue could lead to unauthorized users gaining access to sensitive files stored on the Nextcloud Server, potentially compromising data confidentiality and integrity.
Technical Details of CVE-2017-0892
Nextcloud Server's vulnerability is detailed below:
Vulnerability Description
The improper authorization vulnerability (CWE-285) in Nextcloud Server before 11.0.3 allows unauthorized access to users' files through an application-specific password bypassing proper session handling.
Affected Systems and Versions
- Product: Nextcloud Server
- Vendor: Nextcloud
- Versions Affected: Before 11.0.3
Exploitation Mechanism
Unauthorized users can exploit this vulnerability by using an application-specific password to bypass proper session handling and gain access to users' files.
Mitigation and Prevention
To address CVE-2017-0892, consider the following steps:
Immediate Steps to Take
- Upgrade Nextcloud Server to version 11.0.3 or later to mitigate the vulnerability.
- Monitor user access and file activities for any suspicious behavior.
Long-Term Security Practices
- Implement strong password policies and multi-factor authentication to enhance access control.
- Regularly update and patch Nextcloud Server to protect against known vulnerabilities.
Patching and Updates
Ensure timely installation of security patches and updates provided by Nextcloud to address vulnerabilities and enhance system security.