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IBM Tivoli Provisioning Manager for OS Deployment Multiple Vulnerabilities



iDefense Security Advisory 03.31.07: IBM Tivoli Provisioning Manager for OS Deployment Multiple Vulnerabilities
iDefense Security Advisory 03.31.07: IBM Tivoli Provisioning Manager for OS Deployment Multiple Vulnerabilities



IBM Tivoli Provisioning Manager for OS Deployment Multiple Vulnerabilities

iDefense Security Advisory 03.31.07
http://labs.idefense.com/intelligence/vulnerabilities/ 
Mar 31, 2007

I. 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/ 

II. 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.

III. 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.

IV. 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.

V. WORKAROUND

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

VI. 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 swg24015347 at the following URL.

http://www-1.ibm.com/support/docview.wss?uid=swg24015347 

VII. CVE INFORMATION

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

VIII. DISCLOSURE TIMELINE

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

IX. CREDIT

The discoverer of these vulnerabilities wishes to remain anonymous.  

Get paid for vulnerability research
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http://labs.idefense.com/ 

X. LEGAL NOTICES

Copyright =A9 2007 iDefense, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDefense. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically,
please e-mail customerservice@idefense.com for permission. 

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.


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