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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.0187 Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution (2809279) 13 February 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Exchange Server 2007 Service Pack 3 Microsoft Exchange Server 2010 Service Pack 2 Publisher: Microsoft Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2013-0418 CVE-2013-0393 Original Bulletin: https://technet.microsoft.com/en-us/security/bulletin/ms13-012 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS13-012 - Critical Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution (2809279) Published Date: February 12, 2013 Version: 1.0 General Information Executive Summary This security update resolves publicly disclosed vulnerabilities in Microsoft Exchange Server. The most severe vulnerability is in Microsoft Exchange Server WebReady Document Viewing, and could allow remote code execution in the security context of the transcoding service on the Exchange server if a user previews a specially crafted file using Outlook Web App (OWA). The transcoding service in Exchange that is used for WebReady Document Viewing is running in the LocalService account. The LocalService account has minimum privileges on the local computer and presents anonymous credentials on the network. This security update is rated Critical for all supported editions of Microsoft Exchange Server 2007 and Microsoft Exchange Server 2010. Affected Software Microsoft Exchange Server 2007 Service Pack 3 Microsoft Exchange Server 2010 Service Pack 2 Vulnerability Information Oracle Outside In Contains Multiple Exploitable Vulnerabilities Two vulnerabilities exist in Microsoft Exchange Server through the WebReady Document Viewing feature. The more severe vulnerability, CVE-2013-0418, could allow remote code execution as the LocalService account if a user views a specially crafted file through Outlook Web Access in a browser. An attacker who successfully exploited this vulnerability could run code on the affected Exchange Server, but only as the LocalService account. The LocalService account has minimum privileges on the local computer and presents anonymous credentials on the network. The other vulnerability, CVE-2013-0393, could cause the affected Exchange Server to become unresponsive if a user views a specially crafted file through Outlook Web Access in a browser. Note that CVE-2013-0393 would not allow an attacker to execute code or to elevate user rights. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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