CVEs-PoC/2020/CVE-2020-7221.md

### [CVE-2020-7221](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7221)
![](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

mysql_install_db in MariaDB 10.4.7 through 10.4.11 allows privilege escalation from the mysql user account to root because chown and chmod are performed unsafely, as demonstrated by a symlink attack on a chmod 04755 of auth_pam_tool_dir/auth_pam_tool. NOTE: this does not affect the Oracle MySQL product, which implements mysql_install_db differently.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/SexyBeast233/SecBooks