Vulnerability Note VU#547459

Oracle 9iAS creates temporary files when processing JSP requests that are world-readable

Overview

Oracle Database Server version 9iAS makes JSP source code publicly available. The source code may be used by attackers to analyze proprietary business logic or uncover Oracle's network configuration, usernames, and/or passwords.

I. Description

When Oracle receives a request for JSP file, it compiles the file in a temporary directory under the "_pages" directory. The compilation of each JSP file results in a ".java" file, which contains Java bytecode and the original JSP source code. Since the "_pages" directory is publicly available over the Internet, any remote user can download the ".java" file and read the JSP source code.

II. Impact

An attacker may analyze JSP source code to determine Oracle usernames and passwords, database configuration, or other business logic that may be helpful for mounting more attacks.

III. Solution

The CERT/CC is currently unaware of a solution to this problem from the vendor.

The following workarounds were suggested by David Litchfield and have not been tested by CERT/CC.

Edit the httpd.conf file found in the $ORACLE_HOME$/apache/apache/conf directory.

To prevent access to the globals.jsa file add the following entry:

<Files ~ "^\globals.jsa">
Order allow,deny
Deny from all
</Files>
To prevent access to the .java pages add the following entry:
<Location /_pages>
Order deny,allow
Deny from all
</Location>
Note that if the JSP pages are stored in a aliased directory (i.e. not a subdirectory of "htdocs") then it is neccessary to add an entry of
<Location /dirname/_pages>
Order deny,allow
Deny from all
</Location>
when "dirname" is the name of the aliased directory.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Oracle	Vulnerable	26-Feb-2002

References

http://www.securityfocus.com/bid/4034
http://www.oracle.com/
http://www.nextgenss.com/advisories/orajsp.txt
http://otn.oracle.com/deploy/security/alerts.htm

Credit

Thanks to David Litchfield for reporting this vulnerability.

This document was written by Shawn Van Ittersum.

Other Information

Date Public:	2002-02-06
Date First Published:	2002-02-26
Date Last Updated:	2002-03-12
CERT Advisory:
CVE-ID(s):
NVD-ID(s):
US-CERT Technical Alerts:
Metric:	11.25
Document Revision:	11

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