full-disclosure - Modify Data via Inline Views

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Message-ID: <000f01c6f6c3$8506aa60$1b02a8c0@rds.local>
Date: Mon, 23 Oct 2006 18:51:42 +0200
From: "Alexander Kornbrust" <ak@...-database-security.com>
To: <full-disclosure@...ts.grok.org.uk>
Subject: Modify Data via Inline Views

Name 	Modify Data via Inline Views (8107967) [DB09]
Systems Affected 	Oracle 9i - 10g Rel. 2
Severity 	High Risk
Category 	Unauthorized Access
Vendor URL 	http://www.oracle.com/
Author 	Alexander Kornbrust (ak at red-database-security.com)
Advisory 	18 October 2006 (V 1.00)
Advisory
http://www.red-database-security.com/advisory/oracle_modify_data_via_inline_
views.html

Details
#######
Updates, deletes and inserts are possible with least-privilege via inline
views. A user with create session only can insert/update/delete data (e.g.
the dual table). This bug is similar but not identical to the bug which was
fixed in the July 2006 CPU (Modify Data via views). No workarounds
available.

Samples
#######
delete from (specially crafted inline view)
insert into (specially crafted inline view)
update (specially crafted inline view)

Patch Information
#################
Apply the patches for Oracle CPU October 2006.

History
#######
24-jul-2006 Oracle secalert was informed about a variant of the create view
bug.
18-oct-2006 Oracle published CPU October 2006 [DB09]
18-oct-2006 Advisory published

Additional Information
######################
An analysis of the Oracle CPU Oct 2006 is available here
http://www.red-database-security.com/advisory/oracle_cpu_oct_2006.html

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