ISS Protection Brief: Microsoft Exchange Remote Compromise

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Internet Security Systems Protection Advisory
April 12, 2005

Microsoft Exchange Remote Compromise

Summary:

ISS has shipped protection for a flaw X-Force has discovered in Microsoft.s
Exchange SMTP Server. Exchange is a dominant corporate email platform, and
is commonly used by large enterprises. A heap-based buffer overflow
vulnerability can be triggered for an extended SMTP verb, allowing an
attacker to completely compromise an Exchange installation.

Business Impact:

Compromise of networks and machines using affected Exchange products may
lead to exposure of large amounts of confidential information, loss of
productivity, and further network compromise. No user-interaction is
required to exploit this vulnerability. Successful exploitation would
grant an attacker administrative privileges on the target Exchange
server, and could potentially expose all corporate email communications.

For the complete X-Force Protection Advisory, please visit:
http://xforce.iss.net/xforce/alerts/id/193

Internet Security Systems, Inc. (ISS) is the trusted expert to global
enterprises and world governments, providing products and services
that protect against Internet threats. An established world leader
in security since 1994, ISS delivers proven cost efficiencies and
reduces regulatory and business risk across the enterprise for
more than 11,000 customers worldwide. ISS products and services
are based on the proactive security intelligence conducted by ISS.
X-Force® research and development team . the unequivocal world
authority in vulnerability and threat research. Headquartered
in Atlanta, Internet Security Systems has additional operations
throughout the Americas, Asia, Australia, Europe and the Middle East.

Copyright (c) 2005 Internet Security Systems, Inc. All rights reserved
worldwide.

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Please send suggestions, updates, and comments to:
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