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Fencer Intel
critical 9.8

GHSA-h8hf-x3f4-xwgp json

Mongoose Vulnerable to Prototype Pollution in Schema Object

published 4y ago modified 2y ago also CVE-2022-24304

cvss
9.8
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

### 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.

Patch / fix

  • npm mongoose 5.13.15, 6.4.6

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CVSS scores

assigned by version score vector
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
npm mongoose
>=6.0.0, <6.4.6
<5.13.15
6.4.6
5.13.15

Classification

Weakness
  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.