/[scripts]/trunk/mitm-ssl.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /trunk/mitm-ssl.pl

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Revision 132 - (show annotations)
Wed Jan 6 23:54:02 2010 UTC (14 years, 2 months ago) by dpavlin
File MIME type: text/plain
File size: 4882 byte(s)
cleanup vars

1 #!/usr/bin/perl
2 # SSL Man-In-The-Middle v0.1. Copyright (C) Vlatko Kosturjak, Kost
3 # Distributed under GPL v2+.
4
5 use strict;
6 use POSIX;
7 use IO::Socket::SSL qw(debug3);
8 $Net::SSLeay::trace = 4;
9 use Getopt::Long;
10 use Time::HiRes qw(time);
11
12 my $laddr = "127.0.0.1";
13 my $lport = 8080;
14 my $raddr = "127.0.0.1";
15 my $rport = 80;
16 my $logdir = "$laddr:$lport-$raddr:$rport";
17
18 my $help;
19 my $daemon;
20 my $buffersize = 2048;
21 my $logtype;
22 my $daemon;
23 my $serverkey = "$logdir/ssl.key";
24 my $servercert = "$logdir/ssl.cert";
25 my $serverdh;
26
27 $| = 1;
28
29 my $goresult = GetOptions(
30 "lport=i" => \$lport,
31 "laddr=s" => \$laddr,
32 "rport=i" => \$rport,
33 "raddr=s" => \$raddr,
34 "logtype=i" => \$logtype,
35 "logdir=s" => \$logdir,
36 "daemon" => \$daemon,
37 "serverkey=s" => \$serverkey,
38 "servercert=s" => \$servercert,
39 "serverdh=s" => \$serverdh,
40 "help" => \$help
41 );
42
43 if ($help) {
44 print <<"END";
45 SSL Man-In-The-Middle v0.1. Copyright (C) Vlatko Kosturjak, Kost
46 Distributed under GPL v2+.
47
48 Usage: $0 [OPTIONS]
49
50 --lport <port> Listening port (default 80)
51 --laddr <address> Listening address (default localhost)
52 --rport <port> Remote port to connect to (default 8080)
53 --raddr <address> Remote address to connect to (default localhost)
54 --serverkey <file> Certificate key file for local SSL server
55 --servercert <file> Certificate file for local SSL server
56 --serverdh <file> Diffie-Helman file for key exchange
57 --log <type> Type of log where 0 is no log (default 0)
58 --logdir Directory to log to (default .)
59 --daemon Daemonize (work in background)
60 --help Display this help message
61 END
62 exit;
63 }
64
65 mkdir $logdir;
66
67 system "openssl req -new -x509 -days 365 -nodes -out $servercert -keyout $serverkey"
68 if ! -e $serverkey && ! -e $servercert;
69
70
71 if ($daemon) {
72 my $pid = fork;
73 exit if $pid;
74 die "$!" unless defined($pid);
75 POSIX::setsid() or die "$!";
76 }
77
78 my $ah = IO::Socket::SSL->new(
79 'LocalPort' => $lport,
80 'LocalAddr' => $laddr,
81 'Reuse' => 1,
82 'Proto' => 'tcp',
83 'SSL_verify_mode' => '0',
84 'SSLdhfile' => $serverdh,
85 'SSL_cert_file' => $servercert,
86 'SSL_key_file' => $serverkey,
87 'Listen' => 10,
88 # 'SSL_version' => 'SSLv3', # SSLv3, SSLv2, TLSv1
89 # 'SSL_cipher_list' => 'RC4-MD5',
90 ) || die "$!";
91
92 $SIG{'CHLD'} = 'IGNORE';
93 my $num = 0;
94
95 while (1) {
96 my $ch = $ah->accept();
97 if ( !$ch ) {
98 print STDERR "cannot accept: $! ", IO::Socket::SSL::errstr(),
99 "\n";
100 next;
101 }
102 if ( !$ch ) { print STDERR "cannot accept: $!\n"; next; }
103 ++$num;
104 my $pid = fork();
105 if ( !defined($pid) ) { print STDERR "cannot fork while(1) $!\n"; }
106 elsif ( $pid == 0 ) {
107 $ah->close( SSL_no_shutdown => 1 );
108 Run( $ch, $num );
109 } else {
110 $ch->close( SSL_no_shutdown => 1 );
111 }
112 }
113
114 sub Run {
115 my ( $ch, $num ) = @_;
116 my $th = IO::Socket::SSL->new(
117 'PeerAddr' => $raddr,
118 'PeerPort' => $rport,
119 # 'SSL_use_cert' => '0',
120 # 'SSL_verify_mode' => '0',
121
122 'SSL_version' => 'SSLv3', # SSLv3, SSLv2, TLSv1
123 'SSL_cipher_list' => 'RC4-MD5',
124 'Proto' => 'tcp'
125 );
126 if ( !$th ) { print "cannot connect $raddr:$rport th: $!"; exit 0; }
127 else { print "connected to $raddr:$rport\n"; }
128 my $fh;
129 if ( -d $logdir ) {
130 $fh = Symbol::gensym();
131 my $path = $logdir . Time::HiRes::time();
132 open( $fh, '>', $path ) or die "$!";
133 }
134 $ch->autoflush();
135 $th->autoflush();
136 my $httpheader = "";
137 my $httpbuf = "";
138 while ( $ch || $th ) {
139 my $rin = "";
140 vec( $rin, fileno($ch), 1 ) = 1 if $ch;
141 vec( $rin, fileno($th), 1 ) = 1 if $th;
142 my ( $rout, $eout );
143 select( $rout = $rin, undef, $eout = $rin, 120 );
144 if ( !$rout && !$eout ) { }
145 my $cbuffer = "";
146 my $tbuffer = "";
147
148 if ($ch
149 && ( vec( $eout, fileno($ch), 1 )
150 || vec( $rout, fileno($ch), 1 ) )
151 )
152 {
153 my $result = sysread( $ch, $tbuffer, $buffersize );
154 if ( !defined($result) ) {
155 print STDERR "$!\n";
156 exit 0;
157 }
158 if ( $result == 0 ) { exit 0; }
159 }
160 if ($th
161 && ( vec( $eout, fileno($th), 1 )
162 || vec( $rout, fileno($th), 1 ) )
163 )
164 {
165 my $result = sysread( $th, $cbuffer, $buffersize );
166 if ( !defined($result) ) { print STDERR "$!\n"; exit 0; }
167 if ( $result == 0 ) { exit 0; }
168 }
169 if ( $fh && $tbuffer ) {
170 ( print $fh "[c]" . $tbuffer . "[/c]" );
171 }
172 while ( my $len = length($tbuffer) ) {
173 my $res = syswrite( $th, $tbuffer, $len );
174 if ( $res > 0 ) { $tbuffer = substr( $tbuffer, $res ); }
175 else { print STDERR "$!\n"; }
176 }
177 if ( $fh && $cbuffer ) {
178 ( print $fh "[s]" . $cbuffer . "[/s]" );
179 }
180 while ( my $len = length($cbuffer) ) {
181 my $res = syswrite( $ch, $cbuffer, $len );
182 if ( $res > 0 ) { $cbuffer = substr( $cbuffer, $res ); }
183 else { print STDERR "$!\n"; }
184 }
185 }
186 }
187

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