15 April 2015
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.0980 Microsoft Security Bulletin MS15-039 - Important 15 April 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Windows Publisher: Microsoft Operating System: Windows Impact/Access: Access Confidential Data -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2015-1646 Original Bulletin: https://technet.microsoft.com/en-us/library/security/MS15-039 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS15-039 - Important Vulnerability in XML Core Services Could Allow Security Feature Bypass (3046482) Published: April 14, 2015 Version: 1.0 Executive Summary This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow security feature bypass if a user clicks a specially crafted link. In all cases, however, an attacker would have no way to force users to click a specially crafted link; an attacker would have to convince users to click the link, typically by way of an enticement in an email or Instant Messenger message. This security update for Microsoft XML Core Services 3.0 is rated Important for all supported editions of Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2. For more information, see the Affected Software section. Affected Software Windows Server 2003 Windows Server 2003 Service Pack 2 Windows Server 2003 x64 Edition Service Pack 2 Windows Server 2003 with SP2 for Itanium-based Systems Windows Vista Windows Vista Service Pack 2 Windows Vista x64 Edition Service Pack 2 Windows Server 2008 Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for Itanium-based Systems Service Pack 2 Windows 7 Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 Server Core installation option Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Vulnerability Information MSXML3 Same Origin Policy SFB Vulnerability - CVE-2015-1646 A same-origin policy security feature bypass vulnerability exists in Microsoft XML Core Services (MSXML) whereby cross-domain data access could be possible in a document type declaration (DTD) scenario. An attacker who successfully exploited this vulnerability could access sensitive user information, such as username or password and files on the hard drive. In an email attack scenario, an attacker could exploit the vulnerability by sending a specially crafted link to the user and by convincing the user to click the link. In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. In all cases, however, an attacker would have no way to force users to open a specially crafted link; an attacker would have to convince users to click the link, typically by way of an enticement in an email or Instant Messenger message. The update addresses the vulnerability by correcting how Microsoft XML Core services enforces the same-origin policy in a DTD scenario. Microsoft received information about this vulnerability through coordinated vulnerability disclosure. When this security bulletin was issued, Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers. - --------------------------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 firstname.lastname@example.org 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: email@example.com 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 iQIVAwUBVS256xLndAQH1ShLAQIAnA/9FoazOpLWNTSZY+MW4pyHq1KffHt2cWiy jdBZdK77lQtKpaTnH+NdYrM8rXd6Xr5QrHw4fOW2K8UeJe4og7nUxckynHbhRc8k 7KWmEAkgBkAQ/Z2Jc2nQGVKhHkiCq2Uq8K83Ek3myPbfMiW8PVN3S+SxFWolJgNM IrKAYNy/eNQlmWD+6RmjFh+CETOwpFn2+gvq0OUT9auHakcbAKUShAVwJfOeBT9i EqyQbhrZCWZzRzL/lhT9JpQjqYYuV70RQbp0/Xi0WHuEZxXe7ZOG75AFPnEsFMJB zLnbulPMdvcYhDOVRQAjWLuLwpJqqwLzUweBW5ExFdibv5kVuCz2mlIH0yBxZ/G2 ogGZ8HT412KNT6sDUlxHHZnNowWKIjBSzXIw9D5uagKwMIhjEaqMJsMhAi0FSV28 F4RdVptcGrQWj5bbCytYq2RV7G9SBgCI4mOv4/jsufOkgY1ei1tdvCAqOmK9W0fX NBDXSkeNrlGbbMW5/JW9G7JFY4vmDotfosd8UG+DAciWywmHCE/RvIP8k306hfNl +ZIT7nqHIrzhqaLVGkjLJ8bVJIxyoZKK1B4SM78CQ8Jwa4RTIo58iAOqU3C6LRsv auQhdd7/GWrnPMo08FdmwHanKsVhnDvY42w/UnC7URbApb6LLSxUaCKA3aNQL7KM VXTqVzVZieQ= =3umZ -----END PGP SIGNATURE-----