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Mozilla Firefox "jar:" Protocol Handling Cross-Site Scripting Security Issue
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Secunia Advisory:
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SA27605
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Release Date:
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2007-11-09
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Last Update:
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2008-01-03
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Critical:
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Less critical
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Impact:
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Cross Site Scripting
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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: | Mozilla Firefox 2.0.x
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| | CVE reference: | CVE-2007-5947 (Secunia mirror)
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Description:
A security issue has been reported in Mozilla Firefox, which can be exploited by malicious people to conduct cross-site scripting attacks.
The problem is that the "jar:" protocol handler does not validate the MIME type of the contents of an archive, which are then executed in the context of the site hosting the archive. This can be exploited to conduct cross-site scripting attacks on sites that allow a user to upload certain files (e.g. .zip, .png, .doc, .odt, .txt) or on sites with an open redirect.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.
Solution:
Update to version 2.0.0.10.
http://www.mozilla.com/firefox/
Provided and/or discovered by:
Reported by Jesse Ruderman in a Bugzilla entry.
Independently discovered by pdp.
Open redirect vector reported by Fernando Muñoz.
Changelog:
2007-11-14: Added CVE reference.
2007-11-27: Updated "Solution" section. Added link to "Original Advisory" section.
2008-01-03: Updated "Description" section to include additional attack vector.
Original Advisory:
Mozilla:
https://bugzilla.mozilla.org/show_bug.cgi?id=369814
http://www.mozilla.org/security/announce/2007/mfsa2007-37.html
GNUCITIZEN:
http://www.gnucitizen.org/blog/web-mayhem-firefoxs-jar-protocol-issues
beford.org:
http://blog.beford.org/?p=8
Other References:
US-CERT VU#715737:
http://www.kb.cert.org/vuls/id/715737
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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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