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Multiple Oracle XDB FTP / HTTP Services Buffer Overflow Vulnerabilities


Date Discovered

David Litchfield, has illustrated multiple vulnerabilities in the Oracle 9i XML Database (XDB), during a seminar on "Variations in exploit methods between Linux and Windows" presented at the Blackhat conference.

Ultimately exploitation of these issues may provide for remote execution of arbitrary code in the security context of the vulnerable service.

Symantec Enterprise Security Manager Network Assessment Module
Symantec Enterprise Security Manager Network Assessment Module detects and reports this vulnerability. Click here for the advisory released April 18, 2006.

Components Affected
Oracle Oracle9i Enterprise Edition 9.2 .0.1
Oracle Oracle9i Personal Edition 9.2 .0.1
Oracle Oracle9i Standard Edition 9.2 .0.1

Block external access at the network boundary, unless service is required by external parties.
If applicable, filter traffic at the network perimeter. Allow traffic destined for the affected server from trusted hosts and networks only. Deny all other communications. Traffic to ports 8080 and 2100 should be filtered.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Network intrusion detection systems should be deployed to monitor traffic for suspicious or anomalous activity.

Implement multiple redundant layers of security.
An attackers ability to exploit this vulnerability, to execute arbitrary code, may be hindered through the use of various memory protection schemes. Where possible, implement the use of non-executable and randomly mapped memory segments.

Oracle Security Alert #58 (http://otn.oracle.com/deploy/security/pdf/2003Alert58.pdf) was issued on August 18th for this vulnerability.

Source: Oracle Homepage
URL: http://www.oracle.com/index.html

Source: Variations in Exploit methods between Linux and Windows
URL: http://www.blackhat.com/presentations/bh-usa-03/bh-us-03-litchfield-paper.pdf

Discovery of these vulnerabilities has been credited to David Litchfield (david@ngssoftware.com).

Copyright (c) 2003 by Symantec Corp.
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