iScripts MultiCart 2.2 – Multiple SQL Injections

• Exploit Database
• 142 阅读

• 作者： Salvatore Fresta
  日期： 2010-07-03
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/14197/
• 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83

  iScripts MultiCart 2.2 Multiple SQL Injection Vulnerability   NameiScripts MultiCart Vendorhttp://www.iscripts.com Versions Affected 2.2   AuthorSalvatore Fresta aka Drosophila Website http://www.salvatorefresta.net Contact salvatorefresta [at] gmail [dot] com Date2010-03-07   X. INDEX   I.ABOUT THE APPLICATION II. DESCRIPTION III.ANALYSIS IV. SAMPLE CODE V.FIX   I. ABOUT THE APPLICATION   iScriptsMultiCart2.2 is a unique online shopping cart solutionthatenablesyoutohave one storefront and multiplevendorsfor physical or digital (downloadable) products.     II. DESCRIPTION   Thesolution adopted to avoid SQL Injection flaws is not appropriate. Thisallowstheexistenceofmany SQL Injection flaws.     III. ANALYSIS   Summary:   A) Multiple SQL Injection   A) Multiple SQL Injection   Thesolution adoptedconsists in transforming the query string in uppercase andcheckingtheexistenceof the words UNION and SELECT.But using the C-like comments in the query string, it is possible to bypass the filter. Example:   SELECT becomes SE/**/LE/**/CT UNIONbecomes UN/**/ION   The new strings do not match withthe words in the black list but they are good for MySQL. The following is the affected code (session.php):   $mystring = strtoupper($_SERVER['QUERY_STRING']); $server_injec1=strpos($mystring, 'SELECT'); $server_injec2=strpos($mystring, 'UNION');   if (($server_injec1 === false) && ($server_injec2 === false) || ($server_injec1 === '0') && ($server_injec2 === '0')) { ; }//end if else { header('location:index.php'); exit(); }     IV. SAMPLE CODE   A) Multiple SQL Injection   http://site/path/refund_request.php?orderid=SQL     V. FIX   No Fix.