cve/2020/CVE-2020-28169.md

### [CVE-2020-28169](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28169)
![](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

The td-agent-builder plugin before 2020-12-18 for Fluentd allows attackers to gain privileges because the bin directory is writable by a user account, but a file in bin is executed as NT AUTHORITY\SYSTEM.

### POC

#### Reference
- http://packetstormsecurity.com/files/160791/Fluentd-TD-agent-4.0.1-Insecure-Folder-Permission.html
- http://packetstormsecurity.com/files/160791/Fluentd-TD-agent-4.0.1-Insecure-Folder-Permission.html
- https://github.com/fluent/fluentd/issues/3201
- https://github.com/fluent/fluentd/issues/3201

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/developer3000S/PoC-in-GitHub
- https://github.com/hectorgie/PoC-in-GitHub
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/zubrahzz/FluentD-TD-agent-Exploit-CVE-2020-28169