|
Problem IC71413
|
Status: Closed |
Users able to update statistics for tables without appropriate privileges |
| product: |
DB2 FOR LUW / DB2FORLUW / 950 - DB2 |
| Problem description: |
Users are able to incorrectly update statistics columns
in SYSSTAT.TABLES for tables upon which they do not have
appropriate privileges. Thus, a malicious user may be able to
introduce query performance degradations by modifying table
statistics via this view.
Normally, in order to update the statistics for a
table via this view, you must have CONTROL or explicit
DATAACCESS privilege on the table. This APAR fix addresses
this problem. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* DB2 Version 9.5 GA through to Fix Pack 6 servers on Linux, *
* Unix and Windows platforms. *
****************************************************************
* PROBLEM DESCRIPTION: *
* A user may gain unauthorized access to the catalog data in a *
* SYSSTAT view. *
****************************************************************
* RECOMMENDATION: *
* Apply DB2 Version 9.5 Fix Pack 7 and run the db2updv95 *
* utility. *
**************************************************************** |
| Local Fix: |
Revoke UPDATE privilege from PUBLIC on the SYSSTAT.TABLES view
until this APAR is applied. Namely, run:
revoke update on sysstat.tables from public
You may continue updating statistics with appropriate privileges
via the SYSCAT.TABLES view if needed, which is not affected by
this problem. |
| available fix packs: |
DB2 Version 9.5 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
First fixed in DB2 Version 9.5 Fix Pack 7 and all subsequent Fix
Packs. |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC72118 IC72119
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 23.09.2010
26.04.2011
26.04.2011 |
| Problem solved at the following versions (IBM BugInfos) |
9.5.FP7
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.1.0.7
|
 |
| 9.5.0.7
|
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