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Opera Charset Inheritance Cross-Site Scripting Vulnerability
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Secunia Advisory:
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SA24312
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Release Date:
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2007-02-26
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Last Update:
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2007-04-27
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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: | Opera 9.x
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| | CVE reference: | CVE-2007-0995 (Secunia mirror)
CVE-2007-1115 (Secunia mirror)
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Description:
Stefan Esser has discovered a vulnerability in Opera, which can be exploited by malicious people to conduct cross-site scripting attacks.
The vulnerability exist because pages that do not specify a charset inherit the charset of the parent page. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of certain sites that are included e.g. via iframes in a malicious page that uses UTF-7 as charset.
Successful exploitation requires that the user is tricked into visiting a malicious web site.
The vulnerability is confirmed in version 9.10. 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 9.20.
Provided and/or discovered by:
Stefan Esser
Changelog:
2007-03-02: Added CVE reference.
2007-03-28: Updated "Solution" section. Added link to "Original Advisory" section.
2007-04-27: Updated "Solution" section.
Original Advisory:
Hardened-PHP Project:
http://www.hardened-php.net/advisory_032007.142.html
Opera:
http://www.opera.com/support/search/view/855/
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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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