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Category:   Application (Database)  >   IBM DB2 Vendors:   IBM
IBM DB2 DB2DIAG.LOG Symlink Flaw Lets Local Users Overwrite Files to Gain Elevated Privileges
SecurityTracker Alert ID:  1017665
SecurityTracker URL:  http://securitytracker.com/id/1017665
CVE Reference:   CVE-2007-1027   (Links to External Site)
Updated:  May 19 2008
Original Entry Date:  Feb 19 2007
Impact:   Modification of system information, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8, 9
Description:   A vulnerability was reported in IBM DB2. A local user can obtain root privileges on the target system.

A local user can create a symbolic link (symlink) from a critical file on the system to certain files used by DB2. Then, the local user can invoke a set user id (setuid) DB2 binaries to write to the symlinked file with setuid privileges.

Windows-based systems are not affected.

Impact:   A local user can obtain root privileges on the target system.
Solution:   The vendor has issued a fix (Version 9 Fix Pack 2 (s070210) and also APAR IY94817).

A fix for version 8.1 is planned for April 2007 (APAR IY95104 and Version 8.1 FixPak 15).

The IBM advisory is available at:

http://www-1.ibm.com/support/docview.wss?uid=swg21255745

[Editor's note: The IBM advisory was originally posted to the following URL but was moved for some unknown reason: http://www-1.ibm.com/support/docview.wss?uid=swg1IY94817]

Vendor URL:  www-1.ibm.com/support/docview.wss?uid=swg21255745 (Links to External Site)
Cause:   Access control error, State error
Underlying OS:   Linux (Any), UNIX (AIX), UNIX (HP/UX), UNIX (Solaris - SunOS)

Message History:   None.


 Source Message Contents

Date:  Mon, 19 Feb 2007 12:32:25 -0500
Subject:  IBM DB2


http://www-1.ibm.com/support/docview.wss?uid=swg1IY94817

> IY94817: SECURITY: DB2DIAG.LOG SYMBOLIC LINK OVERWRITE VULNERABILITY
 
 


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