Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2010.1142 Vulnerability in Windows Netlogon Service Could Allow Denial of Service (2207559) 15 December 2010 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Windows Netlogon Service Publisher: Microsoft Operating System: Windows Server 2003 Windows Server 2008 Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2010-2742 Original Bulletin: http://www.microsoft.com/technet/security/Bulletin/MS10-101.mspx - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS10-101 - Important Vulnerability in Windows Netlogon Service Could Allow Denial of Service (2207559) Published: December 14, 2010 Version: 1.0 General Information Executive Summary This security update resolves a privately reported vulnerability in the Netlogon RPC Service on affected versions of Windows Server that are configured to serve as domain controllers. The vulnerability could allow denial of service if an attacker sends a specially crafted RPC packet to the Netlogon RPC Service interface on an affected system. An attacker requires administrator privileges on a machine that is joined to the same domain as the affected domain controller in order to exploit this vulnerability. This security update is rated Important for all supported editions of Windows Server 2003, Windows Server 2008 (except Itanium-based editions), and Windows Server 2008 R2 (except Itanium-based editions). For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses the vulnerability by correcting the validation of user-provided data in the Netlogon RPC Service interface. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information. Affected Software Windows Server 2003 Service Pack 2 Windows Server 2003 x64 Edition Service Pack 2 Windows Server 2003 with SP2 for Itanium-based Systems Windows Server 2008 for 32-bit Systems* Windows Server 2008 for 32-bit Systems Service Pack 2* Windows Server 2008 for x64-based Systems* Windows Server 2008 for x64-based Systems Service Pack 2* Windows Server 2008 R2 for x64-based Systems* *Server Core installation affected. Vulnerability Information Netlogon RPC Null dereference DOS Vulnerability - CVE-2010-2742 A remote authenticated denial of service vulnerability exists in implementations of the Netlogon RPC Service on affected versions of Windows Server. An attacker who successfully exploited this vulnerability could cause affected versions of the Windows Server to restart. - --------------------------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: https://www.auscert.org.au/1967 iD8DBQFNCCHF/iFOrG6YcBERAtgpAJ9sww3/hyPOWn8DTO2tx9Er/XbRjQCgrYal yZdo/D7VvsBhVP02TayRnXw= =oVcj -----END PGP SIGNATURE-----