Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0764 Vulnerability in JScript and VBScript Engines Could Allow Remote Code Execution (2706045) 15 August 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: JScript 5.8 and VBScript 5.8 Publisher: Microsoft Operating System: Windows XP Windows Server 2003 Windows Vista Windows Server 2008 Windows 7 Windows Server 2008 R2 Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2012-2523 Original Bulletin: http://technet.microsoft.com/en-us/security/bulletin/MS12-056 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS12-056 - Important Vulnerability in JScript and VBScript Engines Could Allow Remote Code Execution (2706045) Published Date: August 14, 2012 Version: 1.0 General Information Executive Summary This security update resolves a privately reported vulnerability in the JScript and VBScript scripting engines on 64-bit versions of Microsoft Windows. The vulnerability could allow remote code execution if a user visited a specially crafted website. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to visit the website, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes users to the attacker's website. This security update is rated Important for JScript 5.8 and VBScript 5.8 on 64-bit Windows clients. This security update is also rated Low for JScript 5.8 on 64-bit Windows servers. For more information, see the subsection, Affected and Non-Affected Software, in this section. Affected Software Windows XP Professional x64 Edition Service Pack 2 Windows Server 2003 x64 Edition Service Pack 2 Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 Windows 7 for x64-based Systems Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for Itanium-based Systems Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 Vulnerability Information JavaScript Integer Overflow Remote Code Execution Vulnerability - CVE-2012-2523 A remote code execution vulnerability exists in the way that the JScript and VBScript engines calculate the size of an object in memory during a copy operation. The vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUCr0+u4yVqjM2NGpAQITDg//X7zbJfH0c0yn7q/bbkTF/pjNL+qg5M7N y2AFcSYhG9Sp81iFKFiW4DMqdFWwCT0lGnBeUyavoceapRzJe5xvxtduC3ZXmGSa cECR2L81NvJY91iaY5VV11BsKq0vJVrNhdyKkDd5Kgpp0MNUB8xJfiUEAFGK6Rke VJMMF8bT/Kg5XGpjgwAJ7+XLWsOWhM4fOpIH7DPIKgT+Uh0UMfIeHoK1GQ+Z9Kgq sO+YKHG6xhwiKfkA2cR56COv89eVyRVJ8C1YQh9ujk+v8YHINy4ZSf73wYwwS3KZ o815E4fXsztAJSjZ4XCDRse5z7sFx095BA3YZPCk7nCqB9QU1+iOaFCF82HoCZlL hVVHfZplckOrxPEQaUHN6++zw/1kOMQafJa5kYyQETqixG2aKBSASyTnv56BQpeq eDfm+CSx9SnMpz5/VazOKdJjKTlzW5SsucNMbOqtOUAe4yGo2BY4lAeJj6thkAMG Ze+Tt1EWRoPHdhYddYzjZMlYPYnRwrDxiE0gGYfuzIJgS0ml2MlMhq1AYF4ikkc+ y2B+Th7qfOJEptIgxeEjhXQScn9dkQi/Pz5i3V/0+aUGO8bmHjUeHoFvQJaCuI+X 4X53IkFfkc72BVY2ZCblSB4zLBn2+ioSXpcAwPeuJr2fiHV6Zjm06EuBOwNafqjm 7mpVl319Qy8= =naG3 -----END PGP SIGNATURE-----