CVE-2022-25871: Prototype Pollution in querymen
Summary
CVE-2022-25871: Prototype Pollution in querymen. Affects querymen versions < 2.1.4. No fix is published. How to fix ↓
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Background
querymen is an npm package that provides a middleware for building complex queries in Node.js applications. It allows users to define query parameters and handle them in a flexible manner. However, all versions of querymen are vulnerable to Prototype Pollution if the parameters of the exported function handler(type, name, fn) can be controlled by users without any sanitization.
Vulnerability Detail
Prototype Pollution is a vulnerability that occurs when an attacker can inject properties into existing objects, leading to unexpected behavior or privilege escalation. In the case of querymen, this vulnerability arises from an incomplete fix of a previous vulnerability (CVE-2020-7600). If an attacker can manipulate the parameters of the handler function, they can pollute the prototype chain and potentially modify or access sensitive data. This could result in unauthorized access, data manipulation, or other security breaches.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If you are unable to immediately update querymen, a temporary workaround is to manually sanitize the parameters passed to the handler function. Ensure that any user-controlled input is properly validated and sanitized before using it in the handler. Here's an example of how you can sanitize the 'type' parameter using the 'lodash' library:
const _ = require('lodash');
function handler(type, name, fn) {
const sanitizedType = _.isString(type) ? type : '';
// Rest of the handler logic
}
Conclusion
In conclusion, querymen is vulnerable to Prototype Pollution if the parameters of the handler function can be controlled by users without proper sanitization. It is crucial to update to the latest version of querymen (2.1.5 or later) to fix this vulnerability. If immediate update is not possible, ensure that user-controlled input is properly validated and sanitized before using it in the handler. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
querymen is an npm package that provides a middleware for building complex queries in Node.js applications. It simplifies the process of handling query parameters and allows for flexible query construction.
Prototype Pollution is a vulnerability that occurs when an attacker can inject properties into existing objects, leading to unexpected behavior or privilege escalation. It is a common vulnerability in JavaScript applications.
This vulnerability allows an attacker to manipulate the parameters of the handler function in querymen, potentially leading to unauthorized access, data manipulation, or other security breaches.
Yes, the maintainers of querymen have addressed this vulnerability in version 2.1.5 and later. It is recommended to update to the latest version to mitigate the risk.
If you are unable to immediately update querymen, you can manually sanitize the parameters passed to the handler function to mitigate the risk. Ensure that any user-controlled input is properly validated and sanitized before using it in the handler.
References
Related vulnerabilities
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