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Category:   Application (Directory)  >   IBM Tivoli Directory Server Vendors:   IBM
IBM Directory Server 'ldacgi' Discloses Files to Remote Users
SecurityTracker Alert ID:  1010834
SecurityTracker URL:  http://securitytracker.com/id/1010834
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Aug 2 2004
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 4.1 and prior versions
Description:   A vulnerability was reported in the IBM Directory Server in 'ldacgi.exe'. A remote user can view files on the target system with the privileges of the web service.

Oliver Karow reported that the script does not properly validate user-supplied input in the 'Template' parameter. A remote user can supply a path containing directory traversal characters ('../') to view arbitrary files on the target system.

A demonstration exploit URL is provided:

http://myserver/ldap/cgi-bin/ldacgi.exe?Action=Substitute&Template=../../../../../boot.ini&Sub=LocalePath&LocalePath=enus1252

The original advisory is available at:

http://www.oliverkarow.de/research/IDS_directory_traversal.txt

Impact:   A remote user can view arbitrary files on the target system with the privileges of the web service.
Solution:   The vendor was already aware of the vulnerability and has released a fix as part of 3.2.2 Fix Pack 4 (http://www-1.ibm.com/support/docview.wss?rs=0&uid=swg24006917) and 4.1 Fix Pack 3.

APARs IR53631 and IR52692 provide additional information:

http://www.ibm.com/support/docview.wss?uid=swg1IR53631
http://www.ibm.com/support/docview.wss?uid=isg1IR52692

Vendor URL:  www.ibm.com/support/docview.wss?uid=isg1IR52692 (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (AIX), UNIX (HP/UX), UNIX (Solaris - SunOS), Windows (2000)

Message History:   None.


 Source Message Contents

Subject:  [Full-Disclosure] =?iso-8859-1?Q?IBM_Directory_Server_-_ldacgi=2Eexe?=



hi there, 

try this to read any file on IBM Directory Server <= 4.1


http://myserver/ldap/cgi-bin/ldacgi.exe?Action=Substitute&Template=../../../../../boot.ini&Sub=LocalePath&LocalePath=enus1252


PS:
This vuln is already known to IBM and a fix is available. 
But since i did not found any information about existence and
exploitation of this vuln on the web, i wrote this little mail.
For further information look here:
http://www.oliverkarow.de/research/IDS_directory_traversal.txt

/Oliver

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

 
 


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