[SECURITY-L] CAIS-Alerta: Vulnerabilidade no Microsoft Active Directory (MS08-035)

Qui Jun 12 09:41:55 -03 2008

----- Forwarded message from Centro de Atendimento a Incidentes de Seguranca <cais em cais.rnp.br> -----

From: Centro de Atendimento a Incidentes de Seguranca <cais em cais.rnp.br>
Subject:  CAIS-Alerta: Vulnerabilidade no Microsoft Active Directory (MS08-035)
To: pop-seg em cais.rnp.br, rnp-alerta em cais.rnp.br, rnp-seg em cais.rnp.br
Date: Wed, 11 Jun 2008 11:53:11 -0300 (BRT)

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Prezados,

O CAIS esta' repassando o alerta da Microsoft, intitulado "MS08-035 - 
Important Vulnerability in Active Directory Could Allow Denial of Service 
(953235)", que trata de uma vulnerabilidade recem-descoberta no Active 
Directory.

Uma vulnerabilidade de Negacao de Servico (DoS) existe no Active Directory 
devido `a validacao insuficiente de solicitacoes LDAP especialmente 
criadas.

Caso um atacante consiga explorar com sucesso esta vulnerabilidade, ele 
podera fazer fazer o computador parar de responder e reiniciar 
automaticamente.

Sistemas afetados:

. Microsoft Windows 2000 Server Service Pack 4
. Windows XP Professional Service Pack 2
. Windows XP Professional Service Pack 3
. Windows XP Professional x64 Edition
. Windows XP Professional x64 Edition Service Pack 2
. Windows Server 2003 Service Pack 1
. Windows Server 2003 Service Pack 2
. Windows Server 2003 Service Pack 1
. Windows Server 2003 Service Pack 2
. Windows Server 2003 x64 Edition
. Windows Server 2003 x64 Edition Service Pack 2
. Windows Server 2003 x64 Edition
. Windows Server 2003 x64 Edition Service Pack 2
. Windows Server 2003 com SP1 para sistemas baseados em Itanium
. Windows Server 2003 com SP2 para sistemas baseados em Itanium
. Windows Server 2008 para sistemas 32-bit*
. Windows Server 2008 para sistemas 32-bit*
. Windows Server 2008 para sistemas baseados em x64*
. Windows Server 2008 para sistemas baseados em x64*

* Para as versoes do Windows Server 2008, as taxas de severidade do alerta 
original da Microsoft se aplicam sendo o sistema instalado ou nao com a 
opcao "Server Core". Para mais informacoes, consulte o alerta original 
(Mais informacoes).

Sistemas nao afetados:

. Windows 2000 Professional Service Pack 4
. Windows XP Home Service Pack 2
. Windows XP Tablet Edition Service Pack 2
. Windows XP Media Center Edition Service Pack 2
. Windows Vista 
. Windows Vista Service Pack 1
. Windows Vista x64 Edition
. Windows Vista x64 Edition Service Pack 1
. Windows Server 2008 para sistemas baseados em Itanium

Correcoes disponiveis:
Recomenda-se fazer a atualizacao para as versoes disponiveis em :

. Microsoft Windows 2000 Server Service Pack 4
  http://www.microsoft.com/downloads/details.aspx?FamilyID=53438880-9ea9-4975-9b85-2a1d3d232793

. Windows XP Professional Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?FamilyID=7d6aec31-cfb4-470c-983e-78c6a3ebabfe

. Windows XP Professional Service Pack 3
  http://www.microsoft.com/downloads/details.aspx?FamilyID=7d6aec31-cfb4-470c-983e-78c6a3ebabfe

. Windows XP Professional x64 Edition
  http://www.microsoft.com/downloads/details.aspx?FamilyID=ef2e0b48-1bde-4ccc-8f40-2918c2568b2b

. Windows XP Professional x64 Edition Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?FamilyID=ef2e0b48-1bde-4ccc-8f40-2918c2568b2b

. Windows Server 2003 Service Pack 1
  http://www.microsoft.com/downloads/details.aspx?FamilyID=a4aed117-3c76-4d80-b50e-8e07e2ef2f7d

. Windows Server 2003 Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?FamilyID=a4aed117-3c76-4d80-b50e-8e07e2ef2f7d

. Windows Server 2003 Service Pack 1
  http://www.microsoft.com/downloads/details.aspx?FamilyID=0a983ffb-4f5a-4b78-9bf5-813dcc5df8d3

. Windows Server 2003 Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?FamilyID=0a983ffb-4f5a-4b78-9bf5-813dcc5df8d3

. Windows Server 2003 x64 Edition
  http://www.microsoft.com/downloads/details.aspx?FamilyID=8298a6e4-d3e2-48ea-ac29-aa4dc5a8ec77

. Windows Server 2003 x64 Edition Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?FamilyID=8298a6e4-d3e2-48ea-ac29-aa4dc5a8ec77

. Windows Server 2003 x64 Edition
  http://www.microsoft.com/downloads/details.aspx?FamilyID=334252db-4a7a-4161-bb71-2a20c0b5bd93

. Windows Server 2003 x64 Edition Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?FamilyID=334252db-4a7a-4161-bb71-2a20c0b5bd93

. Windows Server 2003 com SP1 para sistemas baseados em Itanium
  http://www.microsoft.com/downloads/details.aspx?FamilyID=f6bf4b85-b91d-4378-a356-cd11f12cbbfd

. Windows Server 2003 com SP2 para sistemas baseados em Itanium
  http://www.microsoft.com/downloads/details.aspx?FamilyID=f6bf4b85-b91d-4378-a356-cd11f12cbbfd

. Windows Server 2008 para sistemas 32-bit*
  http://www.microsoft.com/downloads/details.aspx?FamilyID=2981156e-2e2f-469e-91be-da127d50f3fc

. Windows Server 2008 para sistemas 32-bit*
  http://www.microsoft.com/downloads/details.aspx?FamilyID=2981156e-2e2f-469e-91be-da127d50f3fc

. Windows Server 2008 para sistemas baseados em x64*
  http://www.microsoft.com/downloads/details.aspx?FamilyID=b5cfe6f4-c5ba-4be9-a6b8-9381c40c85aa  

Mais informacoes:

. MS08-035 - Important Vulnerability in Active Directory Could Allow Denial of Service (953235)
  http://www.microsoft.com/technet/security/Bulletin/MS08-035.mspx

. SANS ISC Handler's Diary 2008-06-10: June 2008 Black Tuesday Overview
  http://isc.sans.org/diary.html?storyid=4552

. Microsoft Brasil Security
  http://www.microsoft.com/brasil/security

. Technet Brasil - Central de Seguranca
  http://www.technetbrasil.com.br/seguranca

. Windows Live OneCare
  http://safety.live.com/site/pt-BR/default.htm

Identificador CVE (http://cve.mitre.org): CVE-2008-1445

O CAIS recomenda que os administradores mantenham seus sistemas e 
aplicativos sempre atualizados, de acordo com as ultimas versoes e 
correcoes oferecidas pelos fabricantes.

Os Alertas do CAIS tambem sao oferecidos no formato RSS/RDF:
http://www.rnp.br/cais/alertas/rss.xml

Atenciosamente,

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