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TITLE:
Microsoft Windows Vista Gadgets Code Execution Vulnerabilities

SECUNIA ADVISORY ID:
SA26439

VERIFY ADVISORY:
http://secunia.com/advisories/26439/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

OPERATING SYSTEM:
Microsoft Windows Vista
http://secunia.com/product/13223/

DESCRIPTION:
Three vulnerabilities have been reported in Microsoft Windows Vista,
which can be exploited by malicious people to compromise a user's
system.

1) An error in the Feed Headlines gadget when parsing HTML attributes
can be exploited to execute arbitrary code via a specially crafted RSS
post.

Successful exploitation requires that a user e.g. is tricked into
subscribing to a malicious RSS feed in the Feed Headlines gadget
using Internet Explorer.

2) An error in the Contacts Gadget when processing contacts can be
exploited to execute arbitrary code when selecting a
specially-crafted contact or if it is the first contact in the list.

Successful exploitation requires that a user e.g. is tricked into
adding or importing a malicious contact into the Contacts Gadget (not
enabled by default).

3) An error in the Weather Gadget when processing HTML attributes can
be exploited to execute arbitrary code when a user e.g. clicks on a
link on the affected gadget.

Successful exploitation requires a MitM (Man-in-the-Middle) attack
and that the links are visible in the Weather Gadget by dragging and
dropping the gadget on the desktop.

SOLUTION:
Apply patches.

Windows Vista:
http://www.microsoft.com/downloads/details.aspx?FamilyId=49a5bd84-da71-4529-b4d3-ac57dab59e01

Windows Vista x64 Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=24443f59-b908-480b-9b72-7094d4b5e128

PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits Aviv Raff, reported via iDefense Labs.
2) The vendor credits Aviv Raff, Finjan.
3) Reported by the vendor.

ORIGINAL ADVISORY:
MS07-048 (KB938123):
http://www.microsoft.com/technet/security/Bulletin/MS07-048.mspx

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About:
This Advisory was delivered by Secunia as a free service to help
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