CVE-2017-16149: Directory Traversal in zwserver
Summary
CVE-2017-16149: Directory Traversal in zwserver. Affects zwserver versions >= 0.0.0. No fix is published. How to fix ↓
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Background
zwserver is an npm package used for local development. It provides functionality for resolving file paths. However, it is vulnerable to a directory traversal attack, where a malicious actor can 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 zwserver arises from its resolution of relative file paths. By manipulating the file path in a GET request, an attacker can traverse directories and access files outside of the intended root directory. For example, an attacker can send a request like GET /../../../etc/passwd HTTP/1.1 to retrieve the contents of the /etc/passwd file. This can result in the exposure of sensitive 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 zwserver in production environments. Instead, opt for a different package that provides similar functionality but does not suffer from the directory traversal vulnerability.
Conclusion
zwserver is vulnerable to a directory traversal attack, which can result in the exposure of sensitive files. It is advised to use this package only for local development and switch to a different package for production environments. For further support on vulnerability remediation, contact DevNack.com.
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FAQ
zwserver is an npm package used for local development. It helps with resolving file paths.
Directory traversal is a vulnerability that allows an attacker to access files outside of the intended directory root.
The vulnerability in zwserver can lead to the disclosure of private files on the vulnerable system.
No, there is no patch available for this vulnerability.
If the functionality is required for production, it is recommended to switch to a different package that does not have this vulnerability.
