SECUNIA ADVISORY ID: SA25639

VERIFY ADVISORY: http://secunia.com/advisories/25639/

CRITICAL: Highly critical

IMPACT: Security Bypass, Exposure of sensitive information, System access

WHERE: >From remote

OPERATING SYSTEM:
Microsoft Windows XP Professional - http://secunia.com/product/22/
Microsoft Windows XP Home Edition - http://secunia.com/product/16/
Microsoft Windows Vista - http://secunia.com/product/13223/
Microsoft Windows Storage Server 2003 - http://secunia.com/product/12399/
Microsoft Windows Server 2003 Web Edition - http://secunia.com/product/1176/
Microsoft Windows Server 2003 Standard Edition - http://secunia.com/product/1173/
Microsoft Windows Server 2003 Enterprise Edition - http://secunia.com/product/1174/
Microsoft Windows Server 2003 Datacenter Edition - http://secunia.com/product/1175/

SOFTWARE: Microsoft Outlook Express 6 - http://secunia.com/product/102/

DESCRIPTION: Some vulnerabilities have been reported in Microsoft Outlook Express and Windows Mail, which can be exploited by malicious people to disclose sensitive information and compromise a user's system.



1) An error in Windows Mail within the handling of UNC navigation requests can be exploited to execute arbitrary code via a local file or UNC path when a user clicks on a link in a specially crafted email message.

2) An error in the MHTML protocol handler when returning MHTML content can be exploited to read data from another security zone or domain in Internet Explorer when a user visits a specially crafted web page.

3) An error exists in the MHTML protocol handler when passing Content-Disposition notifications back to Internet Explorer. This can be exploited to bypass the file download dialog box and to read data from another Internet Explorer domain when a user visits a specially crafted web page.

SOLUTION: Apply patches.
Windows XP SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=27cca556-0872-4803-b610-4c895ceb99aa
Windows XP Professional x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/details.aspx?FamilyId=1ea813bf-bddb-40f0-8960-b9debc8413e7
Windows Server 2003 SP1/SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=93808a74-035c-4ab7-9283-c693d7bd82be
Windows Server 2003 x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/details.aspx?FamilyId=f63323a9-e285-45e5-84bd-71ae9da126e3
Windows Server 2003 SP1/SP2 for Itanium-based systems: http://www.microsoft.com/downloads/details.aspx?FamilyId=2e62e96e-6571-437d-a612-99175ac39025
Windows Vista: http://www.microsoft.com/downloads/details.aspx?FamilyId=ee57de19-44ea-48f2-ae28-e76fd2018633
Windows Vista x64 Edition: http://www.microsoft.com/downloads/details.aspx?FamilyId=343db20f-7794-4423-b11d-885329fbdf78

PROVIDED AND/OR DISCOVERED BY:
1) kingcope
2) Reported by the vendor.
3) The vendor credits Yosuke Hasegawa, WebAppSec.JP.

ORIGINAL ADVISORY: MS07-034 (KB929123): http://www.microsoft.com/technet/security/bulletin/ms07-034.mspx