CVE-2017-16193 : Security Advisory and Response
Learn about CVE-2017-16193 affecting mfrs static file server. Discover the impact, affected systems, exploitation method, and mitigation steps for this directory traversal vulnerability.
CVE-2017-16193, published on April 26, 2018, addresses a security issue in the mfrs static file server that allows unauthorized access to the file system through directory traversal.
Understanding CVE-2017-16193
What is CVE-2017-16193?
The vulnerability in the mfrs static file server enables attackers to gain unauthorized access to the file system by manipulating the URL.
The Impact of CVE-2017-16193
The directory traversal vulnerability in mfrs can lead to unauthorized disclosure of sensitive information and potential system compromise.
Technical Details of CVE-2017-16193
Vulnerability Description
The mfrs static file server is susceptible to directory traversal, allowing attackers to navigate outside the intended directory structure.
Affected Systems and Versions
- Product: mfrs node module
- Vendor: HackerOne
- Versions: All versions
Exploitation Mechanism
Attackers exploit the vulnerability by inserting "../" in the URL to traverse directories and access unauthorized files.
Mitigation and Prevention
Immediate Steps to Take
- Disable directory listing on the server to prevent easy enumeration of files.
- Implement input validation to sanitize user-controlled input and prevent directory traversal attacks.
Long-Term Security Practices
- Regularly update the mfrs node module to the latest secure version.
- Conduct security assessments and penetration testing to identify and remediate vulnerabilities.
Patching and Updates
Apply patches and security updates provided by HackerOne for the mfrs node module to address the directory traversal vulnerability.