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Firefox Greasemonkey Extension Disclosure of Sensitive Information
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Secunia Advisory:
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SA16128
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Release Date:
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2005-07-21
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Last Update:
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2005-09-28
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Critical:
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Moderately critical
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Impact:
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Exposure of system information
Exposure of sensitive information
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Greasemonkey 0.x (extension for Firefox)
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| | CVE reference: | CVE-2005-2455 (Secunia mirror)
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Description:
Mark Pilgrim has reported a vulnerability in the Greasemonkey extension for Firefox, which can be exploited by malicious people to disclose various information.
The vulnerability is caused due to certain functions being insecurely exposed and can be exploited by a malicious web site via e.g. the "GM_xmlhttpRequest()" function to disclose the contents of arbitrary local files and list the contents of arbitrary local directories.
Successful exploitation requires that a Greasemonkey script is configured to run on the malicious web site.
The vulnerability has been reported in versions prior to 0.3.5.
Solution:
The vulnerability has been fixed in version 0.3.5 by reducing the functionality.
Provided and/or discovered by:
Mark Pilgrim
Original Advisory:
http://greaseblog.blogspot.com/2005/07/mandatory-greasemonkey-update.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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