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             AUSCERT External Security Bulletin Redistribution

           ESB-2004.0032 -- Microsoft Security Bulletin MS04-002
                   Vulnerability in Exchange Server 2003
                Could Lead to Privilege Escalation (832759)
                              14 January 2004

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                Microsoft Exchange Server 2003
Publisher:              Microsoft
Operating System:       Windows Server 2003
                        Windows 2000
Impact:                 Increased Privileges
Access Required:        Remote
CVE Names:              CAN-2003-0904

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Microsoft has released security bulletin MS04-002 "Vulnerability in
Exchange Server 2003 Could Lead to Privilege Escalation (832759)".
The vulnerability described in this bulletin is related to a vulnerability
in the non-default use of NTLM authentication between the Outlook Web
Access (OWA) front-end and the Exchange Server back-end.  This
vulnerability could allow a successful attacker to randomly access other
mailboxes through the Outlook Web Access (OWA) component.

Microsoft has rated the severity of this vulnerability as moderate.

Additional information on this vulnerability and patches is available at:

  http://www.microsoft.com/technet/security/bulletin/MS04-002.asp

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