CVE-2017-16093: Directory Traversal in cyber-js
Summary
CVE-2017-16093: Directory Traversal in cyber-js. Affects cyber-js versions < 1.0.7. No fix is published. How to fix ↓
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Background
The cyber-js package is an npm package used for development purposes. It provides functionality for resolving relative file paths. However, it is vulnerable to a directory traversal attack, which allows malicious actors 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 cyber-js arises from the improper resolution of relative file paths. By exploiting this vulnerability, an attacker can craft requests that 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 like GET /../../../etc/passwd to retrieve sensitive system files. This can result in the exposure of confidential information.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As there is no patch available, a possible workaround is to implement input validation and sanitization to prevent directory traversal attacks. This can be done by ensuring that user-supplied input for file paths is properly validated and restricted to the intended directory root.
Conclusion
The cyber-js package is vulnerable to a directory traversal attack, which can result in the disclosure of sensitive files. While no patch is available, it is recommended to use this package only for local development purposes. For production, it is advisable to switch to a different package. For further support on vulnerability remediation, contact DevNack.com.
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FAQ
The vulnerability allows attackers to access sensitive files outside of the intended directory root, potentially leading to the exposure of confidential information.
No, there is no patch available for this vulnerability in cyber-js.
Yes, this vulnerability can be exploited remotely by sending crafted requests to the vulnerable system.
There are no known instances of this vulnerability being exploited in the wild.
If you are using cyber-js for local development, it is recommended to continue using it with caution. However, if you require the functionality of cyber-js for production, it is advised to switch to a different package that does not have this vulnerability.
