### [CVE-2009-20009](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-20009)
![](https://img.shields.io/static/v1?label=Product&message=Bulldog%20Plus%20UPS%20Monitoring%20Software&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=*%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-121%20Stack-based%20Buffer%20Overflow&color=brightgreen)

### Description

Belkin Bulldog Plus version 4.0.2 build 1219 contains a stack-based buffer overflow vulnerability in its web service authentication handler. When a specially crafted HTTP request is sent with an oversized Authorization header, the application fails to properly validate the input length before copying it into a fixed-size buffer, resulting in memory corruption and potential remote code execution. Exploitation requires network access and does not require prior authentication.

### POC

#### Reference
- https://www.exploit-db.com/exploits/8173
- https://www.vulncheck.com/advisories/belkin-bulldog-plus-web-service-buffer-overflow

#### Github
- https://github.com/ARPSyndicate/cve-scores