From: "David Litchfield" <davidl@ngssoftware.com.>
To: <full-disclosure@lists.grok.org.uk.>, <bugtraq@securityfocus.com.>
Subject: Trigger Abuse of MDSYS.SDO_TOPO_DROP_FTBL in Oracle 10g R1 and R2
Date: Tue, 13 Jan 2009 23:52:02 -0000
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NGSSoftware Insight Security Research Advisory
Name: Trigger abuse of MDSYS.SDO_TOPO_DROP_FTBL
Systems Affected: Oracle 10g R1 and R2 (10.1.0.5 and 10.2.0.2)
Severity: High
Vendor URL: http://www.oracle.com/
Author: David Litchfield [ [email protected] ]
Reported: 23rd July 2008
Date of Public Advisory: 13th January 2009
Advisory number: #NISR13012009
CVE: CVE-2008-3979
Overview
********
Oracle has just released a fix for a flaw that, when exploited, allows a =
low=20
privileged authenticated database user to gain MDSYS privileges. This =
can be=20
abused by an attacker to perform actions as the MDSYS user.
Details
*******
MDSYS.SDO_TOPO_DROP_FTBL is one of the triggers that forms part of the=20
Oracle Spatial Application. It is vulnerable to SQL injection. When a =
user=20
drops a table the trigger fires. The name of the table is embedded in a=20
dynamic SQL query which is then executed by the trigger. Note that the=20
Oracle advisory states that the attacker requires the DROP TABLE and =
CREATE=20
PROCEDURE privileges. This is not the case and only CREATE SESSION=20
privileges are required.
Fix Information
***************
Oracle was alerted to this flaw on the 23rd July 2008. A patch has now =
been=20
made available:
http://www.oracle.com/technology/deploy/security/critical-patch-updates/c=
pujan2009.html
NGSSQuirreL for Oracle, an advanced vulnerability assessment scanner=20
designed specifically for Oracle, can be used to accurately determine=20
whether your servers are vulnerable to these flaws. More information =
about=20
NGSSQuirreL for Oracle can be found here:
http://www.ngssoftware.com/products/database-security/ngs-squirrel-oracle=
php
About NGSSoftware
*****************
NGSSoftware, an NCC Group Company, develops vulnerability assessment and =
compliancy tools for database servers including Oracle, Microsoft SQL=20
Server, DB2, Sybase and Informix. Headquartered in the United Kingdom =
NGS=20
has offices in London, St. Andrews (UK), Brisbane, and Perth (Australia) =
and=20
Seattle in the United States; NGS provide services to some of the =
largest=20
and most demanding organizations around the globe.
http://www.ngssoftware.com/
Telephone +44 208 401 0070
Fax +44 208 401 0076
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