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Old 21st May 2002   #1
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Exclamation Alert for Opera browser users

Opera Frame Location Same Origin Policy Circumvention Vulnerability

This information is dated 15 May 2002.
Quote:
Opera is a web browser product created by Opera Software, and is available for a range of operating systems including Windows and Linux. A vulnerability has been reported in some versions of the Opera Browser.

It is possible to bypass the same origin policy in some versions of the Opera Browser. Javascript may modify the location property of an IFRAME or FRAME included in the document. If the location is set to a javascript: URL, the script code will execute within the context of the previous frame site.
As with all such exploits, the likelihood of encountering it is very low, unless one frequents websites where attacking the computers of site visitors is S.O.P.

The exploit is eliminated in version 6.02 of Opera. It can be downloaded from this page or from the Opera website.

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Old 22nd May 2002   #2
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Hi DoctorDoom,

Thanks for the heads up on the Opera vulnerability. That's an infrequent happening, is it not?

Ramona

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Old 27th May 2002   #3
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Opera Upload Vulernability Addressed in 6.03

Latest security update for Opera 6.01/6.02:

Opera vuln gives up local files


GreyMagic Security Advisory GM#001-OP

Topic: Reading ANY local file in Opera.

Discovery date: 07 May 2002.

Affected applications:

Opera 6.01 on Windows platforms.
Opera 6.02 on Windows platforms.
---

Opera 6.03 changelog

Fixed problem with bookmarklets
Fixed security issue with file-upload, as reported by GreyMagic Software
---

Download Opera 6.03

Ramona


Last edited by Ramona; 28th May 2002 at 02:42.
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