cve/2019/CVE-2019-12814.md

### [CVE-2019-12814](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12814)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x through 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has JDOM 1.x or 2.x jar in the classpath, an attacker can send a specifically crafted JSON message that allows them to read arbitrary local files on the server.

### POC

#### Reference
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

#### Github
- https://github.com/0xT11/CVE-POC
- https://github.com/Al1ex/CVE-2019-12814
- https://github.com/Anonymous-Phunter/PHunter
- https://github.com/BorderTech/java-common
- https://github.com/CGCL-codes/PHunter
- https://github.com/LibHunter/LibHunter
- https://github.com/SexyBeast233/SecBooks
- https://github.com/SugarP1g/LearningSecurity
- https://github.com/developer3000S/PoC-in-GitHub
- https://github.com/diakogiannis/moviebook
- https://github.com/hectorgie/PoC-in-GitHub
- https://github.com/ilmari666/cybsec
- https://github.com/paolodenti/telegram-types
- https://github.com/seal-community/patches