CVEs-PoC/2017/CVE-2017-18640.md

### [CVE-2017-18640](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18640)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.

### POC

#### Reference
- https://bitbucket.org/snakeyaml/snakeyaml/issues/377
- https://bitbucket.org/snakeyaml/snakeyaml/wiki/Changes
- https://www.oracle.com/security-alerts/cpuApr2021.html

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/AwsAlbayati/Software-Security
- https://github.com/GangOf7/WebApp
- https://github.com/adioss/snakeyaml-test
- https://github.com/danielps99/startquarkus
- https://github.com/n0-traces/cve_monitor
- https://github.com/ytono/gcp-arcade