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Oracle 10g R2 PITRIG_DROPMETADATA Buffer Overflow Vulnerability

11.07.07

BACKGROUND

Oracle Database Server is a family of database products that range from personal databases to enterprise solutions. Further information is available at the following URL.

http://www.oracle.com/database/index.html

DESCRIPTION

Remote exploitation of a buffer overflow in the XDB.XDB_PITRIG_PKG.PITRIG_DROPMETADATA procedure in Oracle Corp.'s Database 10gR2 could allow a user with an authenticated session to execute arbitrary code in the context of the database account.

The XDB_PITRIG_PKG.PITRIG_DROPMETADATA procedure takes two arguments, OWNER and NAME. The lengths of these arguments are used by an internal function to construct an SQL query without being adequately sanitized. If the combined length of the two fields is too large, a buffer overflow occurs, allowing arbitrary code execution.

ANALYSIS

Exploitation of this vulnerability allows an authenticated remote user to execute code on the underlying system in the context of the database account. Other than access to execute the vulnerable function, this vulnerability does not require any special privileges. From the database user account, an attacker can then access or modify the database and files related to its operation.

DETECTION

iDefense has confirmed this vulnerability on Oracle Database 10g Release 2 with all Critical Patch Updates as of February 2007. Previous versions are suspected to be vulnerable.

WORKAROUND

iDefense is not aware of any effective workaround for this vulnerability.

VENDOR RESPONSE

Oracle Corp. has been contacted and stated the following.

" Tracking #: 9219583 Description: BUFFER OVERFLOW IN XDB.XDB_PITRIG_PKG.PITRIG_DROPMETADATA Status: Issue fixed in main codeline, scheduled for a future CPU "

CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2007-4517 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems.

DISCLOSURE TIMELINE

02/01/2007 Initial vendor notification
02/01/2007 Initial vendor response
11/02/2007 Third-party public exploit release
11/07/2007 Public disclosure

CREDIT

The discoverer of this vulnerability wishes to remain anonymous.

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LEGAL NOTICES

Copyright © 2007 Verisign, Inc.

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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.