CVE-2017-16089: Directory Traversal in serverlyr
Summary
CVE-2017-16089: Directory Traversal in serverlyr. Affects serverlyr versions >= 0.0.0. No fix is published. How to fix ↓
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Background
The serverlyr package is an npm module used for server-side development. It provides functionality for handling server requests and responses. However, this package is vulnerable to a directory traversal attack, which allows an attacker to access files outside of the intended directory root. This can lead to the disclosure of sensitive files on the affected system.
Vulnerability Detail
The vulnerability in serverlyr arises from the way it resolves relative file paths. By manipulating the file path in a specific manner, an attacker can traverse directories and access files that should be inaccessible. For example, an attacker can send a crafted HTTP request with a relative file path that goes beyond the intended directory root, such as GET /../../../etc/passwd. This would allow the attacker to retrieve the /etc/passwd file, which may contain sensitive information like user credentials.
This vulnerability has a high severity rating and is classified under CWE-22 (Path Traversal).
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 serverlyr in production environments. Instead, consider using an alternative package that provides similar functionality but does not suffer from the directory traversal vulnerability.
Conclusion
The serverlyr package is vulnerable to a directory traversal attack, which can lead to the disclosure of sensitive files. Unfortunately, no patch is available for this vulnerability. It is advised to use serverlyr only for local development and switch to a different package for production. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The impact of this vulnerability is the potential disclosure of sensitive files on the affected system. An attacker can access files outside of the intended directory root, which may include private files containing sensitive information.
No, there is no patch available for this vulnerability in the serverlyr package.
Yes, this vulnerability can be exploited remotely by sending crafted HTTP requests to the affected server.
This vulnerability has a high severity rating.
If you are using serverlyr, 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.