Cross-Site Scripting (XSS) Vulnerability in node-serve-index
Summary
CVE-2015-8856: Cross-site scripting (XSS) vulnerability in the serve-index package before 1.6.3 for Node.js allows remote attackers to inject arbitrary web script or HTML via a crafted file or directory name. Affects node-serve-index versions < 1.9.1-1. Fixed in 1.9.1-1. How to fix ↓
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Background
node-serve-index is a package for Node.js that provides a middleware for serving directory listings. It allows users to browse the contents of a directory on a web server. This package is commonly used in web applications to display file and directory listings to users. However, a vulnerability has been discovered in versions before 1.6.3 that allows remote attackers to inject arbitrary web script or HTML through a crafted file or directory name.
Vulnerability Detail
The vulnerability, identified as CVE-2015-8856, is a Cross-Site Scripting (XSS) vulnerability. It occurs when user-supplied input is not properly sanitized and is rendered on a web page without proper encoding. In the case of node-serve-index, this vulnerability allows an attacker to inject malicious script or HTML code into the directory listing page, which can then be executed by unsuspecting users who view the page. This can lead to various attacks, such as stealing sensitive information, session hijacking, or spreading malware.
How To Fix
Minimum fixed version
1.9.1-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade node-serve-indexTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If updating the package is not immediately possible, a temporary workaround is to disable directory listing or implement additional input validation and sanitization measures in the application code. This can help mitigate the risk of XSS attacks until the package is updated.
Conclusion
In conclusion, the node-serve-index package before version 1.6.3 is vulnerable to a Cross-Site Scripting (XSS) attack. It is crucial to update the package to the latest version or apply temporary measures to mitigate the risk. For further assistance and support in vulnerability remediation, you can contact DevNack.com.
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FAQ
Cross-Site Scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious scripts or HTML code into web pages viewed by other users. It occurs when user-supplied input is not properly sanitized and is rendered on a web page without proper encoding.
If your application uses the node-serve-index package and is vulnerable to this XSS vulnerability, an attacker can inject malicious scripts or HTML code into the directory listing page. This can lead to various attacks, such as stealing sensitive information, session hijacking, or spreading malware.
Yes, a fix is available in version 1.6.3 of the node-serve-index package. It is recommended to update to this version or later to mitigate the XSS vulnerability.
If updating the package is not immediately possible, you can disable directory listing or implement additional input validation and sanitization measures in your application code. This can help mitigate the risk of XSS attacks until the package is updated.
You can find more information about this vulnerability, including the CVE identifier (CVE-2015-8856), in the National Vulnerability Database (NVD) or the vulnerability database provided by Vulert.
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