RE: MS Security Bulletin

  • From: "Dee Arnold" <Deea@xxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 16 Oct 2003 08:49:20 -0500

They have a workaround for this one, but it looks like it could affect
incoming email (or my field users using SMTP). I'll take a look at applying
the patch, but since I'm going on vacation for a week starting tomorrow, I'm
concerned with leaving problems with my backup...What do you think -- patch
or workaround? I have exchange 2000 SP3.

Workaround:
To require SMTP authentication on an Exchange 2000 server: 

Start Exchange System Manager. 
Locate the server in the organization tree. 
Expand the Protocols container for the server. 
Expand the SMTP container. 
For each SMTP virtual server: 
Open the properties and of the virtual server object. 
Click the Access properties page. 
Click the Authentication button. 
Clear the "Anonymous Access" checkbox. 
Click OK to accept the change. 
To require SMTP authentication on an Exchange 5.5 server: 

To require authentication for inbound connections: 

Click the Connections page. 
In the "Accept Connections" Section, mark the radio button for "Only from
hosts using Authentication." 
Impact of Workaround: Because most of the SMTP servers on the Internet only
support Anonymous Authentication, inbound sessions from external SMTP servers
will be affected.

-----Original Message-----
From: Joshua M. Etterman [mailto:jetterman@xxxxxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: Wednesday, October 15, 2003 4:27 PM
To: [ExchangeList]
Subject: [exchangelist] MS Security Bulletin


AD: Get Thawte's New Step-by-Step SSL Guide for MSIIS: 
http://www.msexchange.org/thawte/

I'm sure everyone else has gotten this, but thought I'd post it FYI!

-----BEGIN PGP SIGNED MESSAGE-----

- --------------------------------------------------------------------
Title: Microsoft Exchange Server Security Bulletin Summary for 
       October 2003
Issued: October 15, 2003 
Version Number: 1.0 
Bulletin: http://www.microsoft.com/technet/security/excoct03.asp
- --------------------------------------------------------------------

Summary:
========
Included in this advisory are updates for two newly discovered 
vulnerabilities in Microsoft Exchange Server. These vulnerabilities, 
broken down by severity are: 

\\Critical Security Bulletins\\

    MS03-046 - Vulnerability in Exchange Server could allow 
               Arbitrary Code Execution (829436)

             - Affected Software: 
               - Exchange Server 5.5
               - Exchange 2000 Server

             - Impact: Remote Code Execution
             - Version Number: 1.0 

\\Moderate Security Bulletins\\

    MS03-047 - Vulnerability in Exchange Server 5.5 Outlook Web 
               Access Could Allow Cross-Site Scripting Attack 
               (828489)

             - Affected Software:
               - Exchange Server 5.5

             - Impact: Remote Code Execution 
             - Version Number: 1.0

    
Patch Availability:
===================
Patches are available to fix these vulnerabilities.
For additional information, including Technical Details, 
Workarounds, answers to Frequently Asked Questions, and Patch 
Deployment Information please read the Microsoft Exchange 
Security Bulletin Summary for October at:
http://www.microsoft.com/technet/security/excoct03.asp 

Acknowledgments:
================
Microsoft thanks the following for working with us to protect 
customers:

- - João Gouveia (joao.gouveia@xxxxxxxxxxxx) for reporting the issue 
described in MS03-046. 

- - Ory Segal of Sanctum Inc. (http://www.sanctuminc.com/) for reporting 
the issue described in MS03-047. 


Support: 
========
Technical support is available from Microsoft Product Support 
Services at 1-866-PCSAFETY. There is no charge for support calls 
associated with security patches.
 
Revisions: 
==========
* V1.0 October 15, 2003: Bulletin Created. 


********************************************************************
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---
Joshua M. Etterman

Complete College Solutions
CCS Financial Corporation
513 W. Chocolate Avenue
Hershey, PA 17033

Phone: (717) 508-2000
Fax: (717) 508-2001
Email: jetterman@xxxxxxxxxxxxxxxxxxxxxxxxxxxx



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