CVE-2017-16101: Directory Traversal in serverwg
Summary
CVE-2017-16101: Directory Traversal in serverwg. Affects serverwg versions >= 0.0.0. No fix is published. How to fix ↓
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Background
The serverwg package is a simple HTTP server used for local development. It provides basic functionality for serving files over HTTP. However, it is vulnerable to a directory traversal issue, which allows an attacker to access the filesystem by manipulating the URL. This vulnerability can lead to unauthorized access to sensitive files and potentially compromise the system's security.
Vulnerability Detail
The directory traversal vulnerability in serverwg arises from insufficient input validation. By including "../" in the URL, an attacker can navigate to parent directories and access files outside the intended scope. For example, an attacker can request the URL GET /../../../../../../../../../../etc/passwd to retrieve the contents of the /etc/passwd file. This can expose sensitive information and potentially lead to further exploitation of the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As there is no patch available, a workaround for this vulnerability is to implement input validation and sanitization on the server side. This can involve checking the requested file paths and ensuring they are within the intended scope. Additionally, access controls can be implemented to restrict access to sensitive files and directories.
Conclusion
The serverwg package is vulnerable to a directory traversal issue that allows unauthorized access to the filesystem. No patch is available, so it is recommended to use the package only for local development and switch to a different package for production. For further support on vulnerability remediation, contact DevNack.com.
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FAQ
The vulnerability allows an attacker to access files outside the intended scope, potentially leading to unauthorized access to sensitive information and further exploitation of the system.
No, there is currently no patch available for this vulnerability.
Yes, this vulnerability can be exploited remotely by sending crafted requests to the affected server.
There are no known instances of this vulnerability being exploited in the wild.
If you are using the serverwg package, it is recommended to only use it for local development purposes. If the functionality provided by serverwg is required for production, switch to a different package that does not have this vulnerability.
