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Mozilla Firefox Two Vulnerabilities
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Secunia Advisory:
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SA15292
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Release Date:
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2005-05-08
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Last Update:
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2005-05-13
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Critical:
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Highly critical
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Impact:
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Cross Site Scripting
System access
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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 1.x
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| | CVE reference: | CVE-2005-1476 (Secunia mirror)
CVE-2005-1477 (Secunia mirror)
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Description:
Two vulnerabilities have been discovered in Firefox, which can be exploited by malicious people to conduct cross-site scripting attacks and compromise a user's system.
1) The problem is that "IFRAME" JavaScript URLs are not properly protected from being executed in context of another URL in the history list. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an arbitrary site.
2) Input passed to the "IconURL" parameter in "InstallTrigger.install()" is not properly verified before being used. This can be exploited to execute arbitrary JavaScript code with escalated privileges via a specially crafted JavaScript URL.
Successful exploitation requires that the site is allowed to install software (default sites are "update.mozilla.org" and "addons.mozilla.org").
A combination of vulnerability 1 and 2 can be exploited to execute arbitrary code.
NOTE: Exploit code is publicly available.
The vulnerabilities have been confirmed in version 1.0.3. Other versions may also be affected.
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 1.0.4.
http://www.mozilla.org/products/firefox/
Provided and/or discovered by:
* john smith
* Paul, Greyhats Security and Michael Krax.
Changelog:
2005-05-09: Added information about temporary solution. Updated "Solution" section and credits. Added link to vendor advisory.
2005-05-11: Added CVE references and links to US-CERT vulnerability notes.
2005-05-12: New version released. Updated "Solution" section.
2005-05-13: Downgraded criticality as vendor has closed main attack vector by changing web site.
Original Advisory:
Mozilla:
http://www.mozilla.org/security/announce/mfsa2005-42.html
Other References:
US-CERT VU#534710:
http://www.kb.cert.org/vuls/id/534710
US-CERT VU#648758:
http://www.kb.cert.org/vuls/id/648758
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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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