Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0666 MS17-015 - Important: Security Update for Microsoft Exchange Server (4013242) 15 March 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Exchange Server Publisher: Microsoft Operating System: Windows Server 2008 R2 Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 Impact/Access: Increased Privileges -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2017-0110 Original Bulletin: https://technet.microsoft.com/en-us/library/security/MS17-015 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS17-015: Security Update for Microsoft Exchange Server (4013242) Bulletin Number: MS17-015 Bulletin Title: Security Update for Microsoft Exchange Server Severity: Important KB Article: 4013242 Version: 1.0 Published Date: 14/03/2017 Executive Summary This security update resolves a vulnerability in Microsoft Exchange Outlook Web Access (OWA). The vulnerability could allow remote code execution in Exchange Server if an attacker sends an email with a specially crafted attachment to a vulnerable Exchange server. This security update is rated Important for all supported editions of Microsoft Exchange Server 2013 and Microsoft Exchange Server 2016. For more information, see the Affected Software and Vulnerability Severity Ratings section. The security update addresses the vulnerability by correcting how Microsoft Exchange validates web requests. For more information about the vulnerability, see the Vulnerability Information section. For more information about this update, see Microsoft Knowledge Base Article 4013242. Affected Software Executive Summary Microsoft Exchange Server 2013 Microsoft Exchange Server 2016 Vulnerability Information Microsoft Exchange Elevation of Privilege Vulnerability CVE-2017-0110 An elevation of privilege vulnerability exists in the way that Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests.To exploit the vulnerability, an attacker who successfully exploited this vulnerability could, perform script/content injection attacks, and attempt to trick the user into disclosing sensitive information. An attacker could exploit the vulnerability by sending a specially crafted email, containing a malicious link, to a user. Alternatively, an attacker could use a chat client to social engineer a user into clicking on the malicious link. The security update addresses the vulnerability by correcting how Microsoft Exchange validates web requests. NOTE: For this vulnerability to be exploited, a user must click on a maliciously crafted link from an attacker. Mitigating Factors Microsoft has not identified any mitigating factors for this vulnerability. Workarounds Microsoft has not identified any workarounds for this vulnerability. Security Update Deployment For Security Update Deployment information, see the Microsoft Knowledge Base article referenced here in the Executive Summary. Acknowledgments Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgments for more information. Disclaimer The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWMiHCox+lLeg9Ub1AQgNCQ//aosgWHyhuQ06zRvo/DPwQCKi1HgePNZX m+97MJ3KyTGHIEUUK0X5PIZxKOo88GtCg3QWTG6FRTzStlUMwnR65mSIHYd5SfBe 2JZ4xwRdyfK6nGD7oD3YDsKKqfhvQMAmkxQOFj2ksXLcb7NxDsy7k4qxsNvYhVE4 LnCh9Sxef2zhpl/A9CUNd514CczVWy2rnsutE7zLSn2s8aNb5iGW8k0q8yx3SH1O zpRNxrkiCaxWdmJB1fHOPDRW5q6bvHUcOP20O/QgN6N35M2ustk1EdTasFlurtYw tLm5QGo6Vuh2R6/T3auqxLMP8L4vu3DG9JFT4unwkVa6pFUjJs4cTut+1N16IS0Y 56os3wy1gVdYUGenONIJcSCwZYnqup4gTiO8zkInnpFBHhw1ulvRoY/y5gyCcnC0 NUQZ4ulitzdnV4w/yLZ2WIgxEs+yan07dRyjw2mf8lNimftxCM6zB8QlEPefOsvi IdWD24nZIlktGug4RUWU+ydrwVfVWtuaQHWQAdZ3pWsbaIYDhnwWZ2b6AgdaBso+ /3PcX7l/ms2nmjF5oksBjsHoYMQ0hWIQg3i9zAYu9pLGjoWaIFTzdXK7zMwisIcu bjMnXD/lDgEheFiqcb0Nx1jBWAbTRREh9NXHQeN6p2joFxYHKyrEhUxbvDeeV3y8 unYwj1idLYY= =4jsM -----END PGP SIGNATURE-----