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Category:   Application (Generic)  >   ELOG Vendors:   Ritt, Stefan
ELOG Configuration File Parsing NULL Pointer Dereference Lets Remote Users Deny Service
SecurityTracker Alert ID:  1017450
SecurityTracker URL:  http://securitytracker.com/id/1017450
CVE Reference:   CVE-2006-6318   (Links to External Site)
Date:  Dec 28 2006
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.6.2 (SVN revision 1748)
Description:   A vulnerability was reported in ELOG. A remote user can cause denial of service conditions.

A remote user can send a request containing the string 'global' to trigger a NULL pointer dereference in parsing the configuration file and cause the target service to crash.

If the application is configured with password protection, the remote user must be authenticated to trigger this flaw.

A demonstration exploit URL is provided:

http://[target]/global/

The vulnerability resides in the show_elog_list() function in 'elogd.c'.

The vendor was notified on November 8, 2006.

Jayesh KS and Arun Kethipelly of OS2A discovered this vulnerability.

Impact:   A remote user can cause the target service to crash.
Solution:   The vendor has issued a fixed version (2.6.2-7 (SVN revision 1749)), available at:

http://midas.psi.ch/elog/download.html

Vendor URL:  midas.psi.ch/elog/ (Links to External Site)
Cause:   Exception handling error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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