Technical Description

Two vulnerabilities have been identified in Gateway CWebLaunchCtl ActiveX Control, which could be exploited by remote attackers to cause a denial of service or take complete control of an affected system.

The first issue is caused by a buffer overflow error in the "weblaunch.ocx" control when handling overly long arguments passed to the "DoWebLaunch()" method, which could be exploited by remote attackers to execute arbitrary code by tricking a user into visiting a specially crafted web page.

The second vulnerability is caused by a design error in the "weblaunch.ocx" control when processing arguments passed to the "DoWebLaunch()" method, which could be exploited by remote attackers to launch arbitrary executables by tricking a user into visiting a specially crafted web page.

Affected Products

Gateway CWebLaunchCtl ActiveX Control version 1.0

Solution

Set a kill bit for the CLSID {93CEA8A4-6059-4E0B-ADDD-73848153DD5E}.

VUPEN Security is not aware of any vendor-supplied patch.

References

http://www.vupen.com/english/advisories/2008/0077
http://www.kb.cert.org/vuls/id/735441

Credits

Vulnerabilities reported by Elazar Broad and Will Dormann (CERT/CC).

ChangeLog

2008-01-09 : Initial release

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