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A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI
has been released. The new version includes many new and advanced
features, which makes it even easier to stay patched.

Download and test it today:
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TITLE:
Google Toolbar Custom Button Installer Dialog Spoofing Weakness

SECUNIA ADVISORY ID:
SA28166

VERIFY ADVISORY:
http://secunia.com/advisories/28166/

CRITICAL:
Less critical

IMPACT:
Spoofing

WHERE:
>From remote

SOFTWARE:
Google Toolbar 4.x
http://secunia.com/product/14035/
Google Toolbar 3.x
http://secunia.com/product/5986/
Google Toolbar 2.x
http://secunia.com/product/14254/
Google Toolbar 1.x
http://secunia.com/product/7220/

DESCRIPTION:
Aviv Raffon has discovered a weakness in Google Toolbar, which can be
exploited by malicious people to conduct spoofing attacks.

The weakness is caused due to an error when handling domains that are
being displayed in the Custom Button Installer dialog. This can be
exploited to spoof the origin of a custom button and the domain
information in the "privacy considerations" section via a specially
crafted xml file in combination with a redirector page.

The weakness is confirmed in Google Toolbar version 4.0.1601.4987 for
Internet Explorer. Other versions may also be affected.

SOLUTION:
Do not rely on information in the Custom Button dialog when
installing custom buttons.

PROVIDED AND/OR DISCOVERED BY:
Aviv Raffon

ORIGINAL ADVISORY:
http://aviv.raffon.net/2007/12/18/GoogleToolbarDialogSpoofingVulnerability.aspx

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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