[SECURITY-L] CAIS-Alerta: Vulnerabilidade no DirectX (MS08-033)

Qui Jun 12 09:40:55 -03 2008

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From: Centro de Atendimento a Incidentes de Seguranca <cais em cais.rnp.br>
Subject:  CAIS-Alerta: Vulnerabilidade no DirectX (MS08-033)
To: pop-seg em cais.rnp.br, rnp-alerta em cais.rnp.br, rnp-seg em cais.rnp.br
Date: Wed, 11 Jun 2008 11:49:49 -0300 (BRT)

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Prezados,

O CAIS esta' repassando o alerta da Microsoft, intitulado "MS08-033 - 
Critical Vulnerabilities in DirectX Could Allow Remote Code Execution 
(951698)", que trata de duas vulnerabilidades recem-descobertas no 
Microsoft DirectX.

As vulnerabilidades de execucao remota de codigo existem devido `a maneira 
como o DirectX manipula arquivos em formatos suportados e devido `a 
maneira como o codec Windows MJPEG maniputa fluxos de dados MJPEG, em AVI 
ou ASF.

Caso um atacante consiga explorar com sucesso esta vulnerabilidade, ele 
podera obter o controle total sobre o sistema afetado. Entretanto, no caso 
de um usuario com poucos privilegios estar registrado no sistema no 
momento do ataque, o impacto podera ser menor do que caso o usuario 
estivesse registrado com privilegios de administrador.

A Microsoft considera esta vulnerabilidade como sendo critica e recomenda 
que todos os usuarios apliquem as correcoes imediatamente.

Sistemas afetados:

. Microsoft Windows 2000 Service Pack 4 (DirectX 7.0)
. Microsoft Windows 2000 Service Pack 4 (DirectX 8.1)
. Microsoft Windows 2000 Service Pack 4 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows XP Service Pack 2 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows XP Service Pack 3 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows XP Professional x64 Edition (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows XP Professional x64 Edition Service Pack 2 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)	
. Windows Server 2003 Service Pack 1 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows Server 2003 Service Pack 2 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows Server 2003 x64 Edition (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows Server 2003 x64 Edition Service Pack 2 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows Server 2003 com SP1 para sistemas baseados em Itanium (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows Server 2003 com SP2 para sistemas baseados em Itanium (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
. Windows Vista (DirectX 10.0)
. Windows Vista Service Pack 1 (DirectX 10.0)
. Windows Vista x64 Edition (DirectX 10.0)
. Windows Vista x64 Edition Service Pack 1 (DirectX 10.0)
. Windows Server 2008 para 32-bit Systems* (DirectX 10.0)
. Windows Server 2008 para sistemas baseados em x64* (DirectX 10.0)
. Windows Server 2008 para sistemas baseados em Itanium (DirectX 10.0)

Correcoes disponiveis:

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

. Microsoft Windows 2000 Service Pack 4 (DirectX 7.0)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=65640123-a9e4-455c-a51a-9df28bd2d412

. Microsoft Windows 2000 Service Pack 4 (DirectX 8.1)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=c6a28d45-13cf-48c4-8f89-3417d552e90b

. Microsoft Windows 2000 Service Pack 4 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=4dc47e04-5e95-4636-a814-3f912d961461

. Windows XP Service Pack 2 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=7aaa6427-1e22-4566-960c-836a3b9e5f36

. Windows XP Service Pack 3 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=7aaa6427-1e22-4566-960c-836a3b9e5f36

. Windows XP Professional x64 Edition (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=5e8e7e9d-828d-442c-acac-8d91e80dfb36

. Windows XP Professional x64 Edition Service Pack 2 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=5e8e7e9d-828d-442c-acac-8d91e80dfb36

. Windows Server 2003 Service Pack 1 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=2274ecb2-2802-47e2-84fd-6621fcb17758

. Windows Server 2003 Service Pack 2 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=2274ecb2-2802-47e2-84fd-6621fcb17758

. Windows Server 2003 x64 Edition (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=5ba63bb7-ed6d-4c59-88b3-456eda07e190

. Windows Server 2003 x64 Edition Service Pack 2 (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=5ba63bb7-ed6d-4c59-88b3-456eda07e190

. Windows Server 2003 com SP1 para sistemas baseados em Itanium (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=be71c002-2f64-49e9-9f4b-ba99c4f3caf6

. Windows Server 2003 com SP2 para sistemas baseados em Itanium (DirectX 9.0, DirectX 9.0b ou DirectX 9.0c)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=be71c002-2f64-49e9-9f4b-ba99c4f3caf6

. Windows Vista (DirectX 10.0)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=4d4b305b-57f8-448d-92fa-3dcdd1f42ed7

. Windows Vista Service Pack 1 (DirectX 10.0)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=4d4b305b-57f8-448d-92fa-3dcdd1f42ed7

. Windows Vista x64 Edition (DirectX 10.0)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=b040cfad-2290-44f4-8f5a-5d1ed98a7265

. Windows Vista x64 Edition Service Pack 1 (DirectX 10.0)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=b040cfad-2290-44f4-8f5a-5d1ed98a7265

. Windows Server 2008 para 32-bit Systems* (DirectX 10.0)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=c0c495f8-2a35-4638-a635-1e55dd15e062

. Windows Server 2008 para sistemas baseados em x64* (DirectX 10.0)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=0b70fc2e-4e80-4ae8-8682-41ea04c24e4e

. Windows Server 2008 para sistemas baseados em Itanium (DirectX 10.0)
  http://www.microsoft.com/downloads/details.aspx?FamilyId=80ec83e0-cfb8-4a5e-9254-6679a7225b83

* Versoes do Windows Server 2008 nao estao afetadas se instaladas 
utilizand-se a opcao de instalacao "Server Core". Para mais informacoes, 
consulte o alerta original da Microsoft (Mais informacoes).

Mais informacoes:

. MS08-033 - Critical Vulnerabilities in DirectX Could Allow Remote Code Execution (951698)
  http://www.microsoft.com/technet/security/Bulletin/MS08-033.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-2008-0011, CVE-2008-1444

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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