Open Journal Blog Authenticaion Bypassing Vulnerability

["Tri Huynh" <trihuynh () zeeup com>]

Open Journal Blog Authenticaion Bypassing Vulnerability
  =================================================

  PROGRAM: Open Journal
  HOMEPAGE: http://www.grohol.com/downloads/oj/
  VULNERABLE VERSIONS: 2.5 and below


  DESCRIPTION
  =================================================

  OpenJournal is a completely Web-based interface 
  (say bye-bye to FTP, manual archiving, etc.). Features 
  include: automated file creation; automated index 
  updating; editing of all files through a Web-based 
  interface; entries with or without titles and time posted; 
  automated archiving based on a weekly or monthly format. 
  All done through ordinary text files and no additional 
  perl modules needed to run it

  DETAILS
  =================================================
  By feeding special crafted data into the uid parameter of the URL, an attacker
  can by pass the authentication process and access directly
  to the software's control panel.
  The below example will let the hacker add a new user to the software
  account database.
   http://www.test.com/cgi-bin/oj.cgi?db=default&uid=%00&userid=hacker&auth=adduser


  WORKAROUND
  =================================================
  Open Journal's author (Dr John Grohol) is contacted.A patched version
  (2.6) is ready for downloading on the website.


  CREDITS
  =================================================

  Discovered by Tri Huynh from SentryUnion


  DISLAIMER
  =================================================

  The information within this paper may change without notice. Use of
  this information constitutes acceptance for use in an AS IS condition.
  There are NO warranties with regard to this information. In no event
  shall the author be liable for any damages whatsoever arising out of
  or in connection with the use or spread of this information. Any use
  of this information is at the user's own risk.


  FEEDBACK
  =================================================

  Please send suggestions, updates, and comments to: trihuynh () zeeup com