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UNIRAS Brief - 603/04 - Two Apple Security Advisories:



 
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   UNIRAS (UK Govt CERT) Briefing Notice - 603/04 dated 28.10.04  Time: 12:50  
  UNIRAS is part of NISCC (National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Title
=====

Two Apple Security Advisories:

1. APPLE-SA-2004-10-27 - QuickTime 6.5.2; Flaws in decoding the BMP image type could 
overwrite heap memory and potentially allow the execution of arbitrary code hidden 
in an image.

2. APPLE-SA-2004-10-27 - Security Update 2004-10-27


Detail
====== 

1. A sign extension of an overflowed small integer can result in a very large 
number being passed to a memory move function. The fix prevents the small 
integer from overflowing.

2. For a system with the following pre-conditions:
*  Apple Remote Desktop client installed
*  A user on the client system has been enabled with the "Open and quit applications" privilege
*  The username and password of the ARD user is known
*  Fast User Switching has been enabled
*  A user is logged in, and loginwindow is active via Fast User Switching



1.


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===========================================================================
            

                   ESB-2004.0685 -- APPLE-SA-2004-10-27
                              QuickTime 6.5.2
                              28 October 2004

===========================================================================

        

Product:                QuickTime versions prior to 6.5.2
Publisher:              Apple
Operating System:       Windows XP
                        Windows 2000
                        Windows ME
                        Windows 98
                        Mac OS X Server v10.3.x, v10.2.8
                        Mac OS X v10.3.x, v10.2.8
Impact:                 Execute Arbitrary Code/Commands
Access:                 Remote/Unauthenticated
CVE Names:              CAN-2004-0988 CAN-2004-0926
Original Bulletin URL:
  http://docs.info.apple.com/article.html?artnum=61798

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APPLE-SA-2004-10-27 QuickTime 6.5.2

QuickTime 6.5.2 is now available and delivers the following security
enhancements:

CVE-ID: CAN-2004-0988
Available for:  Microsoft Windows XP, Microsoft Windows 2000, Microsoft Windows 
ME and Microsoft Windows 98
Impact:  An integer overflow that may be exploitable in an HTML environment
Description:  A sign extension of an overflowed small integer can result in a 
very large number being passed to a memory move function. The fix prevents the 
small integer from overflowing.  This issue does not exist in QuickTime for 
Mac OS X systems.  Credit to John Heasman of Next Generation Security Software Ltd. 
for reporting this issue.

CVE-ID: CAN-2004-0926
Available for:  Mac OS X v10.3.x, Mac OS X Server v10.3.x, Mac OS X v10.2.8, 
Mac OS X Server v10.2.8, Microsoft Windows XP, Microsoft Windows 2000, 
Microsoft Windows ME and Microsoft Windows 98
Impact:  A heap buffer overflow could allow attackers to execute arbitrary code
Description:  Flaws in decoding the BMP image type could overwrite heap memory and 
potentially allow the execution of arbitrary code hidden in an image. This is the 
same security enhancement that was made available in Security Update 2004-09-30, 
and can be deployed on the additional system configurations covered by this 
QuickTime update.

QuickTime 6.5.2 may be obtained from the Software Update pane in System Preferences, 
or Apple's QuickTime web site: http://www.apple.com/quicktime/download/

Information will also be posted to the Apple Product Security web site: 
http://www.apple.com/support/security/security_updates.html

This message is signed with Apple's Product Security PGP key, and details are 
available at: http://www.apple.com/support/security/security_pgp.html

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2.


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===========================================================================
             
                   ESB-2004.0686 -- APPLE-SA-2004-10-27
                        Security Update 2004-10-27
                              28 October 2004

===========================================================================

        

Product:                Apple Remote Desktop Client prior to v1.2.4
Publisher:              Apple
Operating System:       Mac OS X 10.3.x
Impact:                 Reduced Security
Access:                 Remote/Unauthenticated
CVE Names:              CAN-2004-0962
Original Bulletin URL:
  http://docs.info.apple.com/article.html?artnum=61798

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APPLE-SA-2004-10-27 Security Update 2004-10-27

Security Update 2004-10-27 is now available and delivers the following security 
enhancement for Apple Remote Desktop Client:

CVE-ID:  CAN-2004-0962
Available for:  Apple Remote Desktop Client v1.2.4 with Mac OS X v10.3.x
Impact:  An application can be started behind the loginwindow and it will run as root
Description:  For a system with the following pre-conditions:
*  Apple Remote Desktop client installed
*  A user on the client system has been enabled with the "Open and quit applications" 
privilege
*  The username and password of the ARD user is known
*  Fast User Switching has been enabled
*  A user is logged in, and loginwindow is active via Fast User Switching

If the Apple Remote Desktop Administrator application on another system is used to 
start a GUI application on the client, then the GUI application will run as root 
behind the loginwindow.  This update prevents Apple Remote Desktop from launching 
applications when the loginwindow is active.

This security enhancement is also present in Apple Remote Desktop v2.1.

This issue does not affect systems prior to Mac OS X v10.3.  Credit to Andrew Nakhla 
and Secunia Research for reporting this issue.

Security Update 2004-10-27 may be obtained from the Software Update pane in System 
Preferences, or Apple's Software Downloads web site: http://www.apple.com/support/downloads/

The download file is named: "SecurityUpdate2004-10-27.dmg"
Its SHA-1 digest is:  6f74180d4144affd3630e8824bff778ac39655e7

Information will also be posted to the Apple Product Security web site: 
http://www.apple.com/support/security/security_updates.html

This message is signed with Apple's Product Security PGP key, and details are available at: 
http://www.apple.com/support/security/security_pgp.html

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UNIRAS wishes to acknowledge the contributions of Apple for the information 
contained in this Briefing. 
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This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
affects you, it may be prudent to retrieve the advisory from the canonical site 
to ensure that you receive the most current information concerning that problem.

Reference to any specific commercial product, process, or service by trade 
name, trademark manufacturer, or otherwise, does not constitute or imply 
its endorsement, recommendation, or favouring by UNIRAS or NISCC.  The views 
and opinions of authors expressed within this notice shall not be used for 
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Neither UNIRAS or NISCC shall also accept responsibility for any errors 
or omissions contained within this briefing notice. In particular, they shall 
not be liable for any loss or damage whatsoever, arising from or in connection 
with the usage of information contained within this notice.

UNIRAS is a member of the Forum of Incident Response and Security Teams (FIRST) 
and has contacts with other international Incident Response Teams (IRTs) in 
order to foster cooperation and coordination in incident prevention, to prompt 
rapid reaction to incidents, and to promote information sharing amongst its 
members and the community at large. 
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<End of UNIRAS Briefing>

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