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Oracle Database
SQL Injection in
SYS.DBMS_CDC_UTILITY.LOCK_CHANGE_SET
(DB02)
April 28, 2008
Risk Level:
Medium
Affected versions:
Oracle Database Server
versions 9iR1, 9iR2,
10gR1, 10gR2 and 11gR1
Remote exploitable:
Yes (Authentication to
Database Server is
needed)
Credits:
This vulnerability was
discovered and
researched by Esteban
Martínez Fayó of Application
Security Inc.
Details:
The PL/SQL package
DBMS_CDC_UTILITY owned
by SYS has an instance
of SQL Injection. A
malicious user can call
a vulnerable procedure
of this package with
specially crafted
parameters and execute
SQL statements with the
elevated privileges of
the SYS user.
Impact:
Any Oracle database user
with EXECUTE privilege
on the package
SYS.DBMS_CDC_UTILITY can
exploit this
vulnerability. By
default, users granted
SELECT_CATALOG_ROLE have
the required privilege.
Exploitation of this
vulnerability allows an
attacker to execute SQL
commands with SYS
privileges.
Vendor Status:
Vendor was contacted and
a patch was released.
Workaround:
Restrict access to the
SYS.DBMS_CDC_UTILITY
package.
Fix:
Apply Oracle Critical
Patch Update April 2008
available at Oracle
Metalink.
Links:
http://www.oracle.com/technology/deploy/security/critical-patch-updates/cpuapr2008.html
Timeline:
Vendor Notification -
9/24/2007
Vendor Response -
9/28/2007
Fix - 4/15/2008
Public Disclosure -
4/28/2008
Application Security,
Inc's database security
solutions have helped
over 1000
organizations secure
their databases from all
internal and external
threats while also ensuring that
those organizations meet
or exceed regulatory
compliance
and audit requirements.
Disclaimer: The
information in the
advisory is believed to
be accurate
at the time of
publishing based on
currently available
information. Use
of the information
constitutes acceptance
for use in an AS IS
condition.
There are no warranties
with regard to this
information. Neither the
author nor the publisher
accepts any liability
for any direct,
indirect, or
consequential loss or
damage arising from use
of, or
reliance on, this
information.
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