Check Point Advisories

Oracle Database DBMS_SNAP_INTERNAL Package Buffer Overflow (CVE-2007-2170)

Vulnerability
Protection

Check Point Reference:	CPAI-2007-256
Date Published:	19 Nov 2009
Severity:	Critical
Last Updated:	Thursday 19 November, 2009
Source:
Industry Reference:	CVE-2007-2170
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 on the server-side, usually as precompiled SQL statements. There exists a buffer overflow vulnerability in Oracle Database Server. The flaw is due to a boundary error within the DBMS_SNAP_INTERNAL package of the product. A remote authenticated attacker can exploit this vulnerability by sending an overly long input to the affected package and cause a buffer overflow. Successful exploitation would allow for arbitrary code injection and execution with the privileges of the server process, usually System/root. In an attack case where code injection is not successful, the affected service may terminate upon processing of the malicious SQL statement. If the service is not configured to restart automatically, the service will be unavailable until the process is restarted manually. In a more sophisticated attack, where code injection is successful, the behavior of the target host is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the service process. On Windows systems, the affected service is running with System privileges, in default configuration.

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

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

This protection's log will contain the following information:

Attack Name: Oracle Protection Violation.
Attack Information: Oracle Database DBMS_SNAP_INTERNAL package buffer overflow