CVE-2017-16156 Explained : Impact and Mitigation
Learn about CVE-2017-16156 affecting myprolyz node module by HackerOne. This vulnerability allows unauthorized access to the server's file system through directory traversal.
CVE-2017-16156 was published on April 26, 2018, and affects the myprolyz node module by HackerOne. The vulnerability allows for directory traversal, enabling unauthorized access to the server's file system.
Understanding CVE-2017-16156
This CVE involves a security issue in the myprolyz node module that can be exploited through directory traversal.
What is CVE-2017-16156?
CVE-2017-16156 is a vulnerability in myprolyz, a static file server, that permits attackers to access the server's file system by manipulating the URL.
The Impact of CVE-2017-16156
The vulnerability poses a significant risk as it allows unauthorized parties to view, modify, or delete files on the server, potentially leading to data breaches or service disruptions.
Technical Details of CVE-2017-16156
This section delves into the specifics of the vulnerability.
Vulnerability Description
The flaw in myprolyz node module enables directory traversal, granting attackers unauthorized access to the server's file system by inserting "../" in the URL.
Affected Systems and Versions
- Product: myprolyz node module
- Vendor: HackerOne
- Versions: All versions
Exploitation Mechanism
By including "../" in the URL, malicious actors can navigate outside the intended directory structure and access sensitive files on the server.
Mitigation and Prevention
Protecting systems from CVE-2017-16156 is crucial to maintaining security.
Immediate Steps to Take
- Update the myprolyz node module to a patched version that addresses the directory traversal vulnerability.
- Implement URL validation mechanisms to prevent malicious input.
Long-Term Security Practices
- Regularly monitor and audit server logs for suspicious activities related to file system access.
- Conduct security training for developers to raise awareness of common vulnerabilities like directory traversal.
Patching and Updates
- Stay informed about security advisories and updates from HackerOne to promptly apply patches that mitigate the CVE-2017-16156 vulnerability.