CVE-2017-16213: Directory Traversal in mfrserver
Summary
CVE-2017-16213: Directory Traversal in mfrserver. Affects mfrserver versions >= 0.0.0. No fix is published. How to fix ↓
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Background
The mfrserver package is an npm package used for local development. It provides functionality for resolving relative file paths. However, it is vulnerable to a directory traversal attack, which allows a malicious actor to access files outside of the intended directory root. This can lead to the disclosure of private files on the vulnerable system.
Vulnerability Detail
The vulnerability in mfrserver arises from its improper resolution of relative file paths. By manipulating the file path in a specific way, an attacker can traverse directories and access files outside of the intended directory root. For example, an attacker can send a GET request with a crafted file path to retrieve sensitive files, such as the /etc/passwd file. This vulnerability poses a high risk as it can result in the unauthorized disclosure of private information.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As there is no patch available, the best workaround is to avoid using mfrserver in production environments. Instead, consider using an alternative package that provides similar functionality but does not suffer from the directory traversal vulnerability.
Conclusion
The mfrserver package is vulnerable to a directory traversal attack, allowing an attacker to access files outside of the intended directory root. As there is no patch available, it is recommended to only use this package for local development purposes. For production environments, switch to a different package that does not have this vulnerability. If you have further questions or need assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows an attacker to access files outside of the intended directory root, potentially leading to the disclosure of sensitive information.
No, there is no patch available for this vulnerability in mfrserver.
Yes, this vulnerability can be exploited remotely by sending crafted requests to the vulnerable server.
If you are using mfrserver, it is recommended to only use it for local development purposes. For production environments, switch to a different package that does not have this vulnerability.
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