cve/2018/CVE-2018-3721.md

### [CVE-2018-3721](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3721)
![](https://img.shields.io/static/v1?label=Product&message=lodash%20node%20module&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Modification%20of%20Assumed-Immutable%20Data%20(MAID)%20(CWE-471)&color=brighgreen)

### Description

lodash node module before 4.17.5 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability via defaultsDeep, merge, and mergeWith functions, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.

### POC

#### Reference
- https://hackerone.com/reports/310443

#### Github
- https://github.com/D4rkP0w4r/SnykCon-CTF-2021
- https://github.com/HotDB-Community/HotDB-Engine
- https://github.com/KorayAgaya/TrivyWeb
- https://github.com/Mohzeela/external-secret
- https://github.com/bunji2/NodeJS_Security_Best_Practice_JA
- https://github.com/duckstroms/Web-CTF-Cheatsheet
- https://github.com/futoin/core-js-ri-invoker
- https://github.com/ossf-cve-benchmark/CVE-2018-3721
- https://github.com/seal-community/patches
- https://github.com/siddharthraopotukuchi/trivy
- https://github.com/simiyo/trivy
- https://github.com/t31m0/Vulnerability-Scanner-for-Containers
- https://github.com/umahari/security
- https://github.com/w181496/Web-CTF-Cheatsheet