CVEs-PoC/2020/CVE-2020-28500.md

### [CVE-2020-28500](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28500)
![](https://img.shields.io/static/v1?label=Product&message=Lodash&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Regular%20Expression%20Denial%20of%20Service%20(ReDoS)&color=brighgreen)

### Description

Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.

### POC

#### Reference
- https://snyk.io/vuln/SNYK-JAVA-ORGFUJIONWEBJARS-1074896
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1074894
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1074892
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBLODASH-1074895
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1074893
- https://snyk.io/vuln/SNYK-JS-LODASH-1018905
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html

#### Github
- https://github.com/HotDB-Community/HotDB-Engine
- https://github.com/Live-Hack-CVE/CVE-2020-28500
- https://github.com/engn33r/awesome-redos-security
- https://github.com/samoylenko/sample-vulnerable-app-nodejs-express
- https://github.com/samoylenko/vulnerable-app-nodejs-express
- https://github.com/seal-community/patches
- https://github.com/the-scan-project/tsp-vulnerable-app-nodejs-express
- https://github.com/the-scan-project/vulnerable-app-nodejs-express
- https://github.com/yetingli/PoCs