bugtraq - PmWiki 2.0.12 Cross Site Scripting

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Date: Tue, 22 Nov 2005 22:10:18 +0100
From: Moritz Naumann <securityfocus.com@...itz-naumann.com>
To: bugtraq@...urityfocus.com
Subject: PmWiki 2.0.12 Cross Site Scripting


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SA0005

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++        PmWiki 2.0.12 Cross Site Scripting         +++++
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


PUBLISHED ON
  Nov 22, 2005


PUBLISHED AT
  http://moritz-naumann.com/adv/0005/pmwiki/0005.txt
  http://moritz-naumann.com/adv/0005/pmwiki/0005.txt.sig


PUBLISHED BY
  Moritz Naumann IT Consulting & Services
  Hamburg, Germany
  http://moritz-naumann.com/

  SECURITY at MORITZ hyphon NAUMANN d0t COM
  GPG key: http://moritz-naumann.com/keys/0x277F060C.asc


AFFECTED APPLICATION OR SERVICE
  PmWiki
  http://www.pmwiki.org/


AFFECTED VERSION
  Version 2.0 up to and including 2.0.12


BACKGROUND
  Everybody knows XSS.
  http://en.wikipedia.org/wiki/XSS
  http://www.cgisecurity.net/articles/xss-faq.shtml


ISSUE
  PmWiki 2.0.12 is subject to a XSS vulnerability. The
  problem exists in the 'q' parameter passed to the search
  function. Successful exploitation may allow for
  impersonification through session stealing.

  The following URL demonstrates this issue:

[pmwiki_basedir]/Site/Search?action=search&q=TRY%20ANOTHER%20SEARCH%20NOW!%20YES,%20YOU!'%20onMouseOver='alert(document.title);'%20

  This issue is caused by insufficient input validation.



WORKAROUND
  Client: Disable Javascript.
  Server: Prevent access to pagelist.php.


SOLUTIONS
  Install or upgrade to the latest release, version 2.0.13.
  Both releases and patch files are available at
    http://www.pmwiki.org/pub/pmwiki/


TIMELINE
  Nov 05, 2005  Discovery
  Nov 05, 2005  Code maintainer notified
  Nov 09, 2005  Code maintainer replies
  Nov 10, 2005  Code maintainer provides fix
  Nov 11, 2005  CVE candidate assignment requested
  Nov 22, 2005  Sick of waiting for Mitre to fix their DB
  Nov 22, 2005  Public disclosure


REFERENCES
  N/A


ADDITIONAL CREDIT
  N/A


LICENSE
  Creative Commons Attribution-ShareAlike License Germany
  http://creativecommons.org/licenses/by-sa/2.0/de/



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