Oracle 9iAS XSQL Servlet ignores file permissions allowing arbitrary users to view sensitive configuration files

Overview

It is possible to read the sensitive configuration files from an Oracle 9i Application Server without any authorization. This can lead to an intruder gaining access to sensitive information about the server and potentially compromising it.

Description

Default installation of the Oracle 9i Application Server does not set appropriate permissions to configuration files that contain sensitive information (see VU#476619). Since these files are not protected by default, any user can access the files directly through a virtual directory and view the contents. When these files have the appropriate permissions set, an HTTP request to access the files results in a “403 Forbidden” response. However, access can be gained by requesting the file using the XSQLServlet. This servlet will bypass any permissions placed on the file and display its content.

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Impact

An intruder can read files that shouldn’t be accessable, and gain sensitive information about the configuration of the server. This information can be used to compromise the server.

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Solution

The CERT/CC is currently unaware of a practical solution to this problem.

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Apply the appropriate permissions to the configuration files and remove the XSQLServlet, if possible.

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Vendor Information

977251

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Oracle __ Affected

Notified: February 13, 2002 Updated: March 06, 2002

Status

Affected

Vendor Statement

See, <http://otn.oracle.com/deploy/security/pdf/ojvm_alert.pdf>

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23977251 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

<http://www.nextgenss.com/papers/hpoas.pdf&gt;

Acknowledgements

Our thanks to David Litchfield of NGSSoftware, who reported on this vulnerability.

This document was written by Jason Rafail and is based on the report by David Litchfield.

Other Information

CVE IDs:	CVE-2002-0569
Severity Metric:	22.50 Date Public: