Opera Multiple Vulnerabilities

Posted on Wednesday, October 13, 2010 @ 22:07:34 CEST in Security
by Raven


VERIFY ADVISORY: Secunia.com - http://secunia.com/advisories/41740/

CRITICALITY: Highly Critical

DESCRIPTION: Multiple vulnerabilities have been reported in Opera, which can be exploited by malicious people to bypass certain security restrictions or conduct spoofing and cross-site scripting attacks. The vulnerabilities are reported in versions prior to 10.63.

1) A combination of cross-domain content inclusion being allowed and the manner in which the CSS parser is fault-tolerant when processing content can be exploited to bypass cross-domain checks and obtain sensitive information from a web page in another domain.
2) An error when altering the size of the browser window may cause the wrong part of the URL of a web page to be displayed.
3) An error in the handling of reloads and redirects combined with caching may result in scripts executing in the wrong security context. This can be exploited to spoof the address bar or conduct cross-site scripting attacks. Successful exploitation of this vulnerability allows manipulating Opera's configuration with minimal user interaction to execute arbitrary code.
4) In certain cases the origin of video content may not be checked, which may result in videos from unrelated sites being used as HTML5 canvas content without protecting it from scripts. This can be exploited to intercept private video streams. Successful exploitation of this vulnerability requires that the address is known and that a user is tricked into opening a specially crafted web page.
5) An error when handling invalid URLs may in certain cases be exploited to execute arbitrary script code in the context of another domain if a linked, invalid URL displayed in an error page runs script code. Successful exploitation of this vulnerability requires that a user interacts with a specially crafted error page.

SOLUTION: Update to version 10.63.

1) The vendor credits Isaac Dawson.
2) Reported by the vendor.
3) Reported by the vendor.
4) The vendor credits Nirankush Panchbhai, Microsoft Vulnerability Research (MSVR).
5) Reported by the vendor.

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