[SECURITY-L] CAIS-Alerta: Vulnerabilidade no Kernel do Microsoft Windows (MS08-025)

[CSIRT - UNICAMP]

----- 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 Kernel do Microsoft Windows (MS08-025)
To: pop-seg em cais.rnp.br, rnp-alerta em cais.rnp.br, rnp-seg em cais.rnp.br
Date: Tue, 8 Apr 2008 17:19:54 -0300 (BRT)

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Prezados,

O CAIS esta' repassando o alerta da Microsoft, intitulado "MS08-025 - 
Vulnerability in Windows Kernel Could Allow Elevation of Privilege 
(941693)", que trata de uma vulnerabilidade no Kernel do Microsoft 
Windows.

A vulnerabilidade de elevacao de privilegios existe devido `a maneira 
impropria como o Microsoft Windows valida entradas passadas do modo 
usuario para o Kernel.

Caso um atacante consiga explorar com sucesso esta vulnerabilidade, ele 
podera obter o controle total sobre o sistema afetado.


Sistemas afetados:

. Microsoft Windows 2000 Service Pack 4
. Windows XP Service Pack 2
. 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 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 Vista
. Windows Vista Service Pack 1
. Windows Vista x64 Edition
. Windows Vista x64 Edition Service Pack 1
. Windows Server 2008 para Sistemas 32-bit
. Windows Server 2008 para Sistemas baseados em x64
. Windows Server 2008 para Sistemas baseados em Itanium


Correcoes disponiveis:

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

. Microsoft Windows 2000 Service Pack 4
  http://www.microsoft.com/downloads/details.aspx?familyid=8db9f328-da0e-4fb8-96c4-6d368b47c224

. Windows XP Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?familyid=0e937f65-abd0-46dd-8883-5bfd70ea1178

. Windows XP Professional x64 Edition
  http://www.microsoft.com/downloads/details.aspx?familyid=a29bbd13-761f-44fa-8948-e1a8c244bd7a

. Windows XP Professional x64 Edition Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?familyid=a29bbd13-761f-44fa-8948-e1a8c244bd7a

. Windows Server 2003 Service Pack 1
  http://www.microsoft.com/downloads/details.aspx?familyid=d3b855a6-4648-4771-826d-11a151828eac

. Windows Server 2003 Service Pack 2  
  http://www.microsoft.com/downloads/details.aspx?familyid=d3b855a6-4648-4771-826d-11a151828eac

. Windows Server 2003 x64 Edition
  http://www.microsoft.com/downloads/details.aspx?familyid=320fd100-35e1-4345-9399-796393235cbc

. Windows Server 2003 x64 Edition Service Pack 2
  http://www.microsoft.com/downloads/details.aspx?familyid=320fd100-35e1-4345-9399-796393235cbc

. Windows Server 2003 com SP1 para Sistemas baseados em Itanium      
  http://www.microsoft.com/downloads/details.aspx?familyid=126426a7-be38-4327-89db-02d99d76589d

. Windows Server 2003 com SP2 para Sistemas baseados em Itanium
  http://www.microsoft.com/downloads/details.aspx?familyid=126426a7-be38-4327-89db-02d99d76589d

. Windows Vista 
  http://www.microsoft.com/downloads/details.aspx?familyid=9640cd8b-d749-4ddd-8af9-b298cebed969

. Windows Vista Service Pack 1
  http://www.microsoft.com/downloads/details.aspx?familyid=9640cd8b-d749-4ddd-8af9-b298cebed969

. Windows Vista x64 Edition 
  http://www.microsoft.com/downloads/details.aspx?familyid=d56bb4fe-304e-45e0-95f2-fde2f47b2a04

. Windows Vista x64 Edition Service Pack 1 
  http://www.microsoft.com/downloads/details.aspx?familyid=d56bb4fe-304e-45e0-95f2-fde2f47b2a04

. Windows Server 2008 para Sistemas 32-bit
  http://www.microsoft.com/downloads/details.aspx?familyid=4497333c-9418-4b91-83dc-0155735421c0

. Windows Server 2008 para Sistemas baseados em x64
  http://www.microsoft.com/downloads/details.aspx?familyid=5aefc7a6-79a4-45a2-b534-35d0ec400dda

. Windows Server 2008 para Sistemas baseados em Itanium
  http://www.microsoft.com/downloads/details.aspx?familyid=3080c26b-7456-41ef-8668-28f15bc7b8ce


Mais informacoes:

. MS08-025: Vulnerability in Windows Kernel Could Allow Elevation of Privilege (941693)
  http://www.microsoft.com/technet/security/Bulletin/MS08-025.mspx

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

. SANS ISC Handler's Diary 2008-04-08: April 2008 - Black Tuesday Overview
  http://www.isc.sans.org/diary.html?storyid=4264

. 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-2008-1084


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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