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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.1173 Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution (2784126) 11 December 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Exchange Server 2007 Service Pack 3 Microsoft Exchange Server 2010 Service Pack 1 Microsoft Exchange Server 2010 Service Pack 2 Publisher: Microsoft Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2012-4791 CVE-2012-3217 CVE-2012-3214 Reference: ASB-2012.0143 Original Bulletin: http://technet.microsoft.com/en-us/security/bulletin/ms12-080 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS12-080 - Critical Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution (2784126) Published Date: December 11, 2012 | Updated Date: Unspecified Version: 1.0 General Information Executive Summary This security update resolves publicly disclosed vulnerabilities and one privately reported vulnerability in Microsoft Exchange Server. The most severe vulnerabilities are 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 1 Microsoft Exchange Server 2010 Service Pack 2 Vulnerability Information Oracle Outside In Contains Multiple Exploitable Vulnerabilities - CVE-2012-3214 and CVE-2012-3217 Remote code execution vulnerabilities exist in Microsoft Exchange Server through the WebReady Document Viewing feature. These vulnerabilities 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 the vulnerabilities could run code on the affected server, but only as the LocalService account. The LocalService account has minimum privileges on the local computer and presents anonymous credentials on the network. RSS Feed May Cause Exchange DoS Vulnerability - CVE-2012-4791 A denial of service vulnerability exists in Microsoft Exchange Server when Exchange improperly handles RSS feeds. The vulnerability could cause the Information Store service on the affected system to become unresponsive until the process is forcibly terminated. This unresponsive condition could cause Exchange databases to dismount, and potentially lead to corruption of databases, affecting user mailboxes. - --------------------------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. 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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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUMfVge4yVqjM2NGpAQLSrA/5AeNtSFtCbFWLnlUbwoMB0racqmtdv6CS roVIPTwzFOX3yAdPPhXxKmzBw+5tDDZtLfxq8NroQj8J3DQyzMMEQHEf64Z4E9Oj MXvMIPf5tOiEmxb7bd76joH5B6bd1HFohVLCx4bByGonnDotywfcsD2ptkswjVGc 0IdrWpjsz4QOnvLBD0zYRRvlLABlOqARVbOIUJCebM0QHnBn+7kg+dBVERY2iLx6 jWasRq58mqbYp0UV427NZLiZwvCnAr3oCHrfVhT23LyxF3G7sA45vF26/fXpNo/J Mlfd7ZxpyvojoMhjVTmZQAWU6xCr6fnkJScb8Iv8uxqdtk8I1oSquGK3FiOwIQYP pxidp6+Is6iE6quvL9b9fKQdUt74eQrPtNQIWc4MoCqr66KomOyTgulVTDKxCDV3 0EUNu9pZlCUSLO/fSQr2Tbb4hW1mcWQ/VcrS1JM3ADQ3Gai2+R37kll50QCwxr+w MNcFKJNiJMhp+CLlpglpSwarX//FeYelTVrvVFXne0ocu3voqF4MSGoGDBaQO9aH KAqTi0O0dlFxQlXVKcfd0RcK98QNlpy0vnEdyVfyn0JiGTcm7WcO0w9C+41AKGFA 2eZdBXskriAgSV8iC2yuZYjk+QXSGT3sp8Y2D9f12mzBGZUfxwqWbo5d4L7nbl6P vfoJma9zK5w= =3mGY -----END PGP SIGNATURE-----