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SEC Consult SA-20241107-0 :: Multiple Vulnerabilities in HASOMED Elefant and Elefant Software Updater Unsafe eval() in TestRail CLI IT Security and Insecurity Portal www.waraxe.us Forum Index -> Sql injection -> when is it suitable to use sql injection or blind sql? View previous topic :: View next topic when is it suitable to use sql injection or blind sql? Posted: Wed Jul 08, 2009 7:27 pm Kroo Regular user Joined: Jul 07, 2009 Posts: 5 Ok i need some information regarding the topic above....still a newbie plzz explain surely help alot.Thanx 4 ur answer. Posted: Wed Jul 08, 2009 9:14 pm tehhunter Valuable expert Joined: Nov 19, 2008 Posts: 261 If you think you have an exploitable parameter (.php?id=4 for example) then try something like this: page.php?id=-1' If you get an error, yes you have an exploitable parameter. Otherwise switch in " or any other characters. If you got past the last step, try something like page.php?id=-1' UNION SELECT 1-- page.php?id=-1' UNION SELECT 1,2-- page.php?id=-1' UNION SELECT 1,2,3-- ... page.php?id=-1' UNION SELECT 1,2,3,4,5,6,7,8,9-- You should be seeing an error about the improper number of columns. Keep adding numbers, starting from 1, until that error disappears. Note the largest number you typed. If the page loads normally, look around for any of the numbers (1,2,3...9). See any? If so, you don't need blind sql injection. Do you not see any? Then you do. I won't get into why but use that as a guide. Posted: Wed Jul 08, 2009 10:21 pm waraxe Site admin Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu It's easy decision - if there is possibility, then use visual feedback. Even better, if it's able to to multi-row fetch. Blind injection is last resort method. It has bad performance and in case of delay based tricks it can be unreliable, but still - it can do the magic, if implemented correctly. Posted: Thu Jul 09, 2009 4:29 am Kroo Regular user Joined: Jul 07, 2009 Posts: 5 Wow, that explain alot....thanx ur guys. I'll be back with more question. Thanx to tehhunter and warexe too for ur explaination that really reignite my interest. Posted: Fri Jul 10, 2009 3:39 am heaths Beginner Joined: Jul 10, 2009 Posts: 1 Location: heaths Thanks for sharing this useful information. It's great. simulationcredit Posted: Fri Jul 10, 2009 6:10 pm Kroo Regular user Joined: Jul 07, 2009 Posts: 5 tehhunter wrote: If you think you have an exploitable parameter (.php?id=4 for example) then try something like this: page.php?id=-1' If you get an error, yes you have an exploitable parameter. Otherwise switch in " or any other characters. If you got past the last step, try something like page.php?id=-1' UNION SELECT 1-- page.php?id=-1' UNION SELECT 1,2-- page.php?id=-1' UNION SELECT 1,2,3-- ... page.php?id=-1' UNION SELECT 1,2,3,4,5,6,7,8,9-- You should be seeing an error about the improper number of columns. Keep adding numbers, starting from 1, until that error disappears. Note the largest number you typed. If the page loads normally, look around for any of the numbers (1,2,3...9). See any? If so, you don't need blind sql injection. Do you not see any? Then you do. I won't get into why but use that as a guide. Yo..tehhunter on the above statement u said something on exploitable parameter right...well i guess the number 4 there is something that u relate to exploitable parameter. So my question is this how do I find the exploitable parameter if i got a website something like this e.g www.site.com, cause i don't see any number there. Posted: Fri Jul 10, 2009 6:42 pm waraxe Site admin Joined: May 11, 2004 Posts: 2407 Location: Estonia, Tartu If you are beginner, then why not use automated scanners like this one: http://www.acunetix.com/ Posted: Fri Jul 10, 2009 8:15 pm Kroo Regular user Joined: Jul 07, 2009 Posts: 5 waraxe wrote: If you are beginner, then why not use automated scanners like this one: http://www.acunetix.com/ Goody thanks waraxe u are such a helpful admin...I'm starting to love this forum already. Posted: Sun Sep 27, 2009 1:48 am javiercmh Beginner Joined: Jul 30, 2009 Posts: 3 Kroo wrote: tehhunter wrote: If you think you have an exploitable parameter (.php?id=4 for example) then try something like this: page.php?id=-1' If you get an error, yes you have an exploitable parameter. Otherwise switch in " or any other characters. If you got past the last step, try something like page.php?id=-1' UNION SELECT 1-- page.php?id=-1' UNION SELECT 1,2-- page.php?id=-1' UNION SELECT 1,2,3-- ... page.php?id=-1' UNION SELECT 1,2,3,4,5,6,7,8,9-- You should be seeing an error about the improper number of columns. Keep adding numbers, starting from 1, until that error disappears. Note the largest number you typed. If the page loads normally, look around for any of the numbers (1,2,3...9). See any? If so, you don't need blind sql injection. Do you not see any? Then you do. I won't get into why but use that as a guide. Yo..tehhunter on the above statement u said something on exploitable parameter right...well i guess the number 4 there is something that u relate to exploitable parameter. So my question is this how do I find the exploitable parameter if i got a website something like this e.g www.site.com, cause i don't see any number there. Hi, In your example, (www.site.com) there's no number, because you aren't looking for it. To find those numbers, you have to look for them using a search engine. I prefer Google because it has a very useful command: 'allinurl:' (with no '') all you have to do, following the example you quoted, is to search: "allinurl:something.php?id=4" . The allinurl command is used for searching content in URLs of any webpage. Then we have a special word, that is «something» in this case. You have to be creative and write the word you think will return a lot of results (like news, noticia, article, etc). Finally we have .php?id=4 (any number), this means that we will find pages in php, and with a modifier id=NUMBER. In this NUMBER you also have to use your imagination and choose the number you think is the best for your interests. I hope that helps, sorry for my spelling (maybe grammar), WYNH (formally javiercmh) when is it suitable to use sql injection or blind sql? www.waraxe.us Forum Index -> Sql injection You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT Page 1 of 1 All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 YearOldest FirstNewest First Select a forumSecurity Research by waraxe----------------General discussionHow to fixMetasploit relatedHash cracking requests----------------MD5 hashesAll other hashesHash related informationhttp://www.waraxe.us portal----------------SuggestionsCooperation proposalsSecurity bugs and issues in general----------------Newbies cornerSql injectionCross-site scripting aka XSSRemote file inclusionFull path disclosureShell commands injectionPhishing and Social EngineeringAll other security holesVarious software----------------PhpNukePostNukePhpBBXMB forumvBulletin BoardInvision Power Boarde107MamboJoomlaXOOPSM$ WindowsLinux worldAll other softwareCoppermine Photo GalleryProgramming languages----------------PhpMySqlPerlJavaJavascriptC and C++Visual BasicBorland Delphi and PascalPythonHTML and XMLAssemblerReverse engineering----------------Newbies cornerDisassemblingPHP script decode requestsMiscellaneous stuff----------------Future of the ITNanotechnologyFun cornerLinksTry2hack sitesProxy databaseDirect Downloads----------------ToolsTutorialsWordlistsRecycle Bin----------------Removed messagesOutdated posts Powered by phpBB © 2001-2008 phpBB Group

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