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iDefense Security Advisory 01.22.08: IBM Tivoli PMfOSD HTTP Request Method Buffer Overflow Vulnerability
iDefense Security Advisory 01.22.08
Jan 22, 2008
IBM Corp.'s Tivoli Provisioning Manager for OS Deployment is a network
boot server that facilitates central management of networked
workstations. It implements Preboot Execution Environment (PXE), a
Web-based administration service, DHCP, TFTP, and several additional
protocols. More information can be found at the following URL.
Remote exploitation of a buffer overflow vulnerability in the web server
component of IBM Corp.'s Tivoli Provisioning Manager for OS Deployment
allows attackers to cause a denial of service condition or potentially
execute arbitrary code with SYSTEM privileges.
This vulnerability specifically exists within the logging functionality
of the web server component. By making requests with a large HTTP
request method, an attacker can cause a static-sized buffer to be
overrun with data they supplied.
Exploitation allows an attacker to cause a denial of service condition
or potentially execute arbitrary code with SYSTEM privileges.
In order to exploit this vulnerability, an attacker must be able to
establish a session on TCP port 443 with target machine. No credentials
are required to trigger the vulnerable code path.
iDefense has confirmed the existence of this vulnerability in IBM Tivoli
Provisioning Manager for OS Deployment version 126.96.36.199. Previous
versions may also be affected.
iDefense is currently unaware of any workarounds for this issue.
VI. VENDOR RESPONSE
The IBM Tivoli team has addressed this vulnerability within Tivoli
Provisioning Manager for OS Deployment Interim Fix 3, Version 188.8.131.52.
More information is available from IBM Document swg24018010 at the
VII. CVE INFORMATION
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2008-0401 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org/), which standardizes names for
VIII. DISCLOSURE TIMELINE
10/24/2007 Initial vendor notification
10/24/2007 Initial vendor response
01/22/2008 Coordinated public disclosure
The discoverer of this vulnerability wishes to remain anonymous.
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X. LEGAL NOTICES
Copyright © 2008 iDefense, 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.