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Category:   Application (Calendar)  >   WebCalendar Vendors:   Knudsen, Craig
WebCalendar $user_inc Global Variable Lets Remote Users View Files on the System
SecurityTracker Alert ID:  1007233
SecurityTracker URL:  http://securitytracker.com/id/1007233
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jul 21 2003
Impact:   Disclosure of system information, Disclosure of user information
Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 0.9.41 and prior versions
Description:   A vulnerability was reported in WebCalendar. A remote user can view arbitrary files on the system.

It is reported that, if global variables are configured on the target system, a remote user can specify the value of the $user_inc variable to cause the specified file to be included. This can allow the remote user to view the contents of the included file. A demonstration exploit URL is provided:

http://[target]/webcalendar/[filename].php?user_inc=../../../../../etc/passwd

Impact:   A remote user can view files on the system.
Solution:   No solution was available at the time of this entry.
Vendor URL:  sourceforge.net/forum/forum.php?thread_id=901234&forum_id=11588 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  [Full-Disclosure] WebCalendar Include File




Webcalendar 0.9.41 and below.
http://webcalendar.sourceforge.net/

  Since this appears to be public info now. 

Problem: 
  http://sourceforge.net/forum/forum.php?thread_id=901234&forum_id=11588

Exploit:
  http://www.some.host/webcalendar/[filename].php?user_inc=../../../../../etc/passwd   


- nocon
http://nocon.darkflame.net/
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html


 
 


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