[SECURITY-L] CAIS-Alerta: Vulnerabilidade no Internet Information Services (MS08-005)

[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 Internet Information Services
 (MS08-005)
To: pop-seg em cais.rnp.br, rnp-alerta em cais.rnp.br, rnp-seg em cais.rnp.br
Date: Tue, 12 Feb 2008 17:59:22 -0200 (BRST)

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Prezados,

O CAIS esta' repassando o alerta da Microsoft, intitulado "MS08-005 - 
Vulnerability in Internet Information Services Could Allow Elevation of 
Privilege (942831)", que trata de uma vulnerabilidade recem-descoberta no 
Internet Information Services (IIS).

Uma vulnerabilidade de elevacao de privilegios existe no IIS devido a 
maneira com que este manipula notificacoes sobre modificacoes em arquivos 
dentro das pastas FTPRoot, NNTPFile\Root e WWWRoot. 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 (IIS 5.0)
. Windows XP Professional Service Pack 2 (IIS 5.1)
. Windows XP Professional x64 Edition (IIS 5.1)
. Windows XP Professional x64 Edition Service Pack 2 (IIS 5.1)
. Windows Server 2003 Service Pack 1 (IIS 6.0)
. Windows Server 2003 Service Pack 2 (IIS 6.0)
. Windows Server 2003 x64 Edition (IIS 6.0)
. Windows Server 2003 x64 Edition Service Pack 2 (IIS 6.0)
. Windows Server 2003 com SP1 para sistemas baseados em Itanium (IIS 6.0)
. Windows Server 2003 com SP2 para sistemas baseados em Itanium (IIS 6.0)
. Windows Vista (IIS 7.0)
. Windows Vista x64 Edition (IIS 7.0)


Correcoes disponiveis:

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

. Microsoft Windows 2000 Service Pack 4 (IIS 5.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=b24f34fb-40b9-4aa5-b5ac-e3f0a6062753

. Windows XP Professional Service Pack 2 (IIS 5.1)
  http://www.microsoft.com/downloads/details.aspx?familyid=73d24fcf-bea9-4b13-9f1c-4e068c53a4ae

. Windows XP Professional x64 Edition (IIS 5.1)
  http://www.microsoft.com/downloads/details.aspx?familyid=103a6bc0-034a-443d-b1d4-81117820dcb2

. Windows XP Professional x64 Edition Service Pack 2 (IIS 5.1)
  http://www.microsoft.com/downloads/details.aspx?familyid=103a6bc0-034a-443d-b1d4-81117820dcb2

. Windows Server 2003 Service Pack 1 (IIS 6.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=516ef8e8-3cb6-4660-b771-3c7f66917a11

. Windows Server 2003 Service Pack 2 (IIS 6.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=516ef8e8-3cb6-4660-b771-3c7f66917a11

. Windows Server 2003 x64 Edition (IIS 6.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=e24fb33c-67b9-4ed4-9317-b5fd535d005a

. Windows Server 2003 x64 Edition Service Pack 2 (IIS 6.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=e24fb33c-67b9-4ed4-9317-b5fd535d005a

. Windows Server 2003 com SP1 para sistemas baseados em Itanium (IIS 6.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=5a4a6083-8c67-4403-8e20-7f2b82178124

. Windows Server 2003 com SP2 para sistemas baseados em Itanium (IIS 6.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=5a4a6083-8c67-4403-8e20-7f2b82178124

. Windows Vista (IIS 7.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=8c7018ec-ae80-4a30-93fc-0f7386732514

. Windows Vista x64 Edition (IIS 7.0)
  http://www.microsoft.com/downloads/details.aspx?familyid=4de2fffc-5793-4acf-98ee-1b801e59ae39


Mais informacoes:

. MS08-005 - Vulnerability in Internet Information Services Could Allow Elevation of Privilege (942831)
  http://www.microsoft.com/technet/security/bulletin/ms08-005.mspx

. SANS ISC Handler's Diary 2008-02-12: February Black Tuesday overview
  http://isc.incidents.org/diary.html?storyid=3973

. 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-2008-0074


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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