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Category:   Application (Generic)  >   McAfee E-Business Server Vendors:   McAfee
McAfee E-Business Server Administration Interface Can Be Crashed By Remote Users Sending Invalid Packet Length Header Values
SecurityTracker Alert ID:  1017929
SecurityTracker URL:  http://securitytracker.com/id/1017929
CVE Reference:   CVE-2007-2151   (Links to External Site)
Updated:  May 14 2008
Original Entry Date:  Apr 18 2007
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8.1.0 and prior versions for Linux, AIX, and HP-UX. 8.5.1 and prior versions for Windows and Solaris.
Description:   A vulnerability was reported in McAfee E-Business Server. A remote user can cause denial of service conditions.

A remote user can send specially crafted authentication data to cause the target administration server to crash. A packet with a length value longer than the length of the packet can trigger an unhandled exception.

The operation of other server functions are not affected by the crashing of the administration server.

The vendor was notified on February 7, 2007.

iDefense reported this vulnerability.

Impact:   A remote user can cause denial of service conditions.
Solution:   The vendor has issued fixed versions (8.5.2 and 8.1.1).

The McAfee advisory is available at:

https://knowledge.mcafee.com/SupportSite/dynamickc.do?externalId=612751&command=show&forward=nonthreadedKC

Vendor URL:  knowledge.mcafee.com/SupportSite/dynamickc.do?externalId=612751&command=show&forward=nonthreadedKC (Links to External Site)
Cause:   Exception handling error
Underlying OS:   Linux (Any), UNIX (AIX), UNIX (HP/UX), UNIX (Solaris - SunOS), Windows (NT), Windows (2000), Windows (2003)

Message History:   None.


 Source Message Contents

Date:  Tue, 17 Apr 2007 20:20:26 -0400
Subject:  iDefense Security Advisory 04.17.07: McAfee E-Business Admin Server

McAfee E-Business Admin Server Invalid Data Length DoS Vulnerability

iDefense Security Advisory 04.17.07
http://labs.idefense.com/intelligence/vulnerabilities/
Apr 17, 2007

I. BACKGROUND

McAfee e-Business Server is used to provide transparent encryption for
corporate end users storing and sharing documents. It is composed of
two utilities; a command line program that encrypts/decrypts data and
manages the keyring, and an administration server that can be used to
update user profiles and manage keys remotely. More information can be
found on the vendor's web site at the following URL.

http://www.mcafee.com/us/enterprise/products/encryption/ebusiness_server.html

II. DESCRIPTION

Remote exploitation of a denial of service (DoS) vulnerability in McAfee
Inc.'s E-Business Server could allow an attacker to crash the
administration server.

Prior to authentication, an attacker can crash the server by sending a
malformed authentication packet. The server will read in a length from
the packet header, and then attempt to read that many bytes from the
buffer. By specifying a large length value and sending a small packet,
the server can be caused to read off the end of mapped heap memory.
This will trigger an exception that is not handled, and the server will
exit.

III. ANALYSIS

Exploitation of this vulnerability allows an attacker to crash the
administration server.

In this situation, the administrator will not be able to configure user
profiles, or add/remove/manage keys.

It is important to note that the core functionality of this product is
contained within the command line utility.

The command line utility would commonly be used by a web script that
needs to encrypt/decrypt data, or by a SMTP gateway that transparently
encrypts routed mail. This utility will continue to work regardless of
whether the administration server is running or not.

IV. DETECTION

iDefense has confirmed the existence of this vulnerability in McAfee
E-Business Server version 8.5.1.101 for Windows. Previous versions may
also be affected.

V. WORKAROUND

iDefense is currently unaware of any workarounds for this issue.

VI. VENDOR RESPONSE

McAfee has addressed this vulnerability with updated packages. More
information is available in McAfee's Security Bulletin 612751 at the
following URL.

https://knowledge.mcafee.com/SupportSite/dynamickc.do?externalId=612751&command=show&forward=nonthreadedKC

VII. CVE INFORMATION

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

VIII. DISCLOSURE TIMELINE

02/07/2007  Initial vendor notification
02/07/2007  Initial vendor response
04/17/2007  Coordinated public disclosure

IX. CREDIT

The discoverer of this vulnerability wishes to remain anonymous.

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

Free tools, research and upcoming events
http://labs.idefense.com/

X. LEGAL NOTICES

Copyright  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.
_______________________________________________
To unsubscribe, go here:
http://www.idefense.com/mailman/listinfo/idlabs-advisories


 
 


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