Public Vulnerability Reports

IBM Tivoli Provisioning Manager for OS Deployment Multiple Vulnerabilities

03.31.07

BACKGROUND

IBM Corp.'s Tivoli Provisioning Manager for OS Deployment is a network boot server that facilitates central management of networked workstations. It implements Pre-boot Execution Environment (PXE) as well as a Web-based administration service. More information can be found at the following URL.

http://www-306.ibm.com/software/tivoli/products/prov-mgr-os-deploy/

DESCRIPTION

Remote exploitation of a multiple vulnerabilities within IBM Corp.'s Tivoli Provisioning Manager for OS Deployment allows attackers to crash the service or potentially execute arbitrary code with SYSTEM privileges.

These vulnerabilities specifically exist in the handling of multi part/form-data HTTP POST requests. Malformed requests can cause invalid memory accesses leading to denial of service, or in some cases heap corruption.

ANALYSIS

Exploitation allows an attacker to crash the service or potentially execute arbitrary code with SYSTEM privileges.

No authentication is required to access the vulnerable code. The attacker need only be able to send a specially crafted request to the HTTP (8080) or HTTP-SSL (443) port of the management service.

It should be noted that this service can be run with reduced privileges. iDefense recommends running this service with the least amount of privileges possible.

DETECTION

iDefense has confirmed the existence of these vulnerabilities within version 5.1.0.116 of Tivoli Provisioning Manager for OS Deployment. Older versions are suspected to be vulnerable as well.

WORKAROUND

Employing firewalls to limit access to the affected service will mitigate exposure to these vulnerabilities.

VENDOR RESPONSE

IBM Corp. Tivoli has addressed these vulnerabilities within Tivoli Provisioning Manager for OS Deployment 5.1 Fix Pack 2. More information is available from IBM Document swg24015664 at the following URL.

http://www-1.ibm.com/support/docview.wss?uid=swg24015664

CVE INFORMATION

A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not been assigned yet.

DISCLOSURE TIMELINE

01/30/2007 Initial vendor notification
03/22/2007 Initial vendor response
03/31/2007 Coordinated public disclosure

CREDIT

The discoverer of these vulnerabilities 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.