CVEs-PoC/2021/CVE-2021-40389.md

### [CVE-2021-40389](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40389)
![](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=CWE-276%3A%20Incorrect%20Default%20Permissions&color=brightgreen)

### Description

A privilege escalation vulnerability exists in the installation of Advantech DeviceOn/iEdge Server 1.0.2. A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1400

#### Github
No PoCs found on GitHub currently.