Check Point Advisories

Oracle Database Server XDB.DBMS_XMLSCHEMA Buffer Overflow (CVE-2006-0272)

Check Point Reference: CPAI-2006-178
Date Published: 1 Dec 2009
Severity: Critical
Last Updated: Tuesday 01 December, 2009
Source:
Industry Reference:CVE-2006-0272
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Oracle Database Server is an enterprise-level relational database application suite. To extend the functionality of the Oracle Database Server, extra packages of related program objects, i.e. procedures, functions, variables, constants, cursors, and exceptions, are provided in order to better manage the data. The included stored procedures and functions, or subprograms, are called by name and optionally passed a set of parameters. They are essentially a set of SQL statements that are stored server-side, usually as precompiled SQL. There exists a buffer overflow vulnerability in the Oracle Database Server product. The vulnerability exists due to insufficient validation of the arguments supplied to DBMS_XMLSCHEMA packages. A remote attacker with valid user credentials may use this vulnerability to execute arbitrary code with privileges of the database server process. In case the attack is aiming at a denial of service attack, the vulnerable Oracle database server process will terminate, and the database service will no longer be available until it is restarted. It is also possible that the database data will be corrupted during the database server termination. In case the attacker has successfully injected and executed malicious code on the vulnerable target host, the behaviour of the target system is dependent on the malicious code. Note that any code executed by the attacker runs with the privileges of the Oracle database server process. On Windows systems, the Oracle database server process runs as the System user.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Oracle Database Server XDB.DBMS_XMLSCHEMA Buffer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Oracle Protection Violation.
Attack Information:  Oracle Database Server XDB.DBMS_XMLSCHEMA buffer bverflow

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