Microsoft Exchange Server OWA could allow unauthorized email account access

exchange-owa-account-access (13869) The risk level is classified as MediumMedium Risk

Description:

Microsoft Exchange Server, when using the Outlook Web Access (OWA), could allow a remote authenticated attacker to gain unauthorized access to a victim's email account. If Microsoft Windows SharePoint Services is installed on a system running Microsoft Windows Server and Microsoft Exchange Server, the Kerberos authentication in Internet Information Services (IIS) is disabled, which would result in improper handling of OWA requests to the vulnerable Exchange Server.


Consequences:

Gain Access

Remedy:

Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS04-002. See References.

As a workaround re-enable and properly configure Kerberos authentication in IIS. See Microsoft Windows Server Support Article dated November 25, 2003 for details.

References:

Platforms Affected:

  • Microsoft Exchange Server 2003

Reported:

Nov 14, 2003

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page