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Opera Command Execution and Cross-Site Scripting
Secunia Advisory: SA32452
Release Date: 2008-10-30
Last Update: 2008-11-03
Popularity: 4,893 views

Critical:
Highly critical
Impact: Cross Site Scripting
System access
Where: From remote
Solution Status: Vendor Patch

Software:Opera 5.x
Opera 6.x
Opera 7.x
Opera 8.x
Opera 9.x

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CVE reference:CVE-2008-4794
CVE-2008-4795


Description:
Some vulnerabilities have been reported in Opera, which can be exploited by malicious people to conduct cross-site scripting attacks or potentially to compromise a user's system.

1) Certain parameters passed to the "History Search" functionality are not properly sanitised before being used. This can be exploited to inject arbitrary HTML and script code, which is executed in a user's browser session when the malicious data is being viewed.

Successful exploitation allows e.g. changing Opera's preferences, which can further be exploited to execute arbitrary commands.

This is related to vulnerability #1 in:
SA32299

2) An error exists in the handling of javascript URLs in the Links panel, which can be exploited to conduct cross-site scripting attacks with pages containing frames.

The vulnerabilities are reported in versions prior to 9.62.

Solution:
Update to version 9.62 (see the vendor's advisory for details).

Provided and/or discovered by:
1) Reported by Stefano Di Paola.
2) Reported by the vendor.

Changelog:
2008-10-31: Added reporter link to the "Original Advisory" section.
2008-11-03: Updated credits section.
2008-11-03: Added CVE reference.

Original Advisory:
Opera:
http://www.opera.com/support/search/view/906/
http://www.opera.com/support/search/view/907/

Aviv Raff:
http://aviv.raffon.net/2008/10/30/AdifferentOpera.asp


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