Opera Multiple Vulnerabilities

Posted on Wednesday, August 20, 2008 @ 20:48:16 PDT in Security
by Raven


VERIFY ADVISORY: http://secunia.com/advisories/31549/

CRITICAL: Highly critical

IMPACT: Security Bypass, Spoofing, Exposure of sensitive information, DoS, System

Opera 5.x - http://secunia.com/product/82/
Opera 6.x - http://secunia.com/product/81/
Opera 7.x - http://secunia.com/product/761/
Opera 8.x - http://secunia.com/product/4932/
Opera 9.x - http://secunia.com/product/10615/

DESCRIPTION: Some vulnerabilities have been reported in Opera, which can be exploited by malicious people to conduct spoofing and cross-site scripting attacks, bypass certain security restrictions, disclose potentially sensitive information, or potentially compromise a user's system.

1) An unspecified error exists when Opera is executed as a protocol handler. This can be exploited to cause a crash and potentially execute arbitrary code. NOTE: Reportedly, the vulnerability only affects Opera for Windows.

2) The problem is that a web page can change the address of frames from other sites opened inside a pop-up window. This can be exploited to load malicious content into a frame of a trusted website.

3) An unspecified error can be exploited to conduct cross-site scripting attacks. No further information is currently available.

4) An error exists in the processing of custom shortcut and menu commands. This can be exploited to execute applications with potentially dangerous parameters, created from uninitialized memory. Successful exploitation may allow execution of arbitrary code, but requires that a user is tricked into modifying shortcuts or menu files.

5) An error exists while reporting websites as secure for browsing. This can be exploited to determine the reporting of an insecure website as secure by including a frame with content from a secure website.

6) An error exists when checking if a web page links to a local file. This can be exploited to link to local feed source files and potentially determine if a file is present on the local system.

7) An error exists when processing news feed subscription requests. This can be exploited to change the address field to the address of the malicious web page and mislead a user.

The vulnerabilities are reported in versions prior to 9.52.

SOLUTION: Update to version 9.52. http://www.opera.com/download/

The vendor credits:
3) Chris Weber of Casaba Security
4) Michael A. Puls II
5) Lars Kleinschmidt

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