cve/2020/CVE-2020-11620.md

### [CVE-2020-11620](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11620)
![](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

FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.commons.jelly.impl.Embedded (aka commons-jelly).

### POC

#### Reference
- https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/security-alerts/cpuoct2020.html

#### Github
- https://github.com/PalindromeLabs/Java-Deserialization-CVEs
- https://github.com/paolodenti/telegram-types
- https://github.com/r00t4dm/r00t4dm
- https://github.com/seal-community/patches
- https://github.com/yahoo/cubed