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A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2009.0046 -- AUSCERT ALERT
                                   [Win]
               Windows Print Spooler: Execute Arbitrary Code
                               10 June 2009

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        AusCERT Alert Summary
        ---------------------

Product:              Windows Print Spooler
Publisher:            Microsoft
Operating System:     Windows Server 2008
                      Windows Vista
                      Windows Server 2003
                      Windows 2000
                      Windows XP
Impact:               Execute Arbitrary Code/Commands
                      Increased Privileges
                      Read-only Data Access
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-0230 CVE-2009-0229 CVE-2009-0228

Original Bulletin:    
  http://www.microsoft.com/technet/security/Bulletin/MS09-022.mspx

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Microsoft Security Bulletin MS09-022 - Critical

Vulnerabilities in Windows Print Spooler Could Allow Remote Code 
Execution (961501)

   Published: June 9, 2009

   Version: 1.0

General Information

Executive Summary

   This security update resolves three privately reported vulnerabilities 
   in Windows Print Spooler. The most severe vulnerability could allow 
   remote code execution if an affected server received a specially 
   crafted RPC request. Firewall best practices and standard default 
   firewall configurations can help protect networks from attacks that 
   originate outside the enterprise perimeter. Best practices recommend 
   that systems that are connected to the Internet have a minimal number 
   of ports exposed.

   This security update is rated Critical for all supported editions of 
   Microsoft Windows 2000; Moderate for all supported editions of Windows 
   XP and Windows Server 2003; and Important for all supported editions of 
   Windows Vista and Windows Server 2008. For more information, see the 
   subsection, Affected and Non-Affected Software, in this section.

   The update addresses the vulnerabilities by changing the way the print 
   spooler parses certain printing data structures, limiting the location 
   where separator pages or embedded files can be read by the Windows 
   Printing Service, and restricting the paths from which the print spooler 
   can load a DLL.

Affected Software

   Microsoft Windows 2000 Service Pack 4 
   Windows XP Service Pack 2 and 
   Windows XP Service Pack 3
   Windows XP Professional x64 Edition Service Pack 2
   Windows Server 2003 Service Pack 2
   Windows Server 2003 x64 Edition Service Pack 2
   Windows Server 2003 with SP2 for Itanium-based Systems
   Windows Vista,
   Windows Vista Service Pack 1, and
   Windows Vista Service Pack 2
   Windows Vista x64 Edition,
   Windows Vista x64 Edition Service Pack 1, and
   Windows Vista x64 Edition Service Pack 2
   Windows Server 2008 for 32-bit Systems and
   Windows Server 2008 for 32-bit Systems Service Pack 2
   (Windows Server 2008 Server Core installation affected)
   Windows Server 2008 for x64-based Systems and
   Windows Server 2008 for x64-based Systems Service Pack 2
   (Windows Server 2008 Server Core installation affected)
   Windows Server 2008 for Itanium-based Systems and
   Windows Server 2008 for Itanium-based Systems Service Pack 2

Vulnerability Information

   Buffer Overflow in Print Spooler Vulnerability - CVE-2009-0228

   A remote code execution vulnerability exists in the Windows Print Spooler 
   that could allow a remote, unauthenticated attacker to execute arbitrary 
   code on an affected system. An attacker who successfully exploited this 
   vulnerability could take complete control of an affected system. An 
   attacker could then install programs; view, change, or delete data; or 
   create new accounts.

   Print Spooler Read File Vulnerability - CVE-2009-0229

   A local, authenticated information disclosure vulnerability exists in the 
   Windows Printing Service that could allow a user to read or print any 
   file on the system. This action can be taken even if the user does not 
   have administrative access. However, the vulnerability could not be 
   exploited remotely or by anonymous users.

   Print Spooler Load Library Vulnerability - CVE-2009-0230

   A remote, authenticated elevation of privilege vulnerability exists in 
   the Windows Print Spooler that could allow an arbitrary dynamic link 
   library (DLL) to be loaded by the Print Spooler. An attacker who 
   successfully exploited this vulnerability could run arbitrary code with 
   elevated privileges. An attacker could then install programs; view, 
   change, or delete data; or create new accounts with full user rights.

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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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