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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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Popularity:
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10,621 views
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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
CVE-2007-1115
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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.
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.
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