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[SA12233] Opera Browser "location" Object Write Access Vulnerability
From: Secunia Security Advisories (sec-adv
secunia.com)
Date: Thu Aug 05 2004 - 07:51:42 CDT
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TITLE:
Opera Browser "location" Object Write Access Vulnerability
SECUNIA ADVISORY ID:
SA12233
VERIFY ADVISORY:
http://secunia.com/advisories/12233/
CRITICAL:
Moderately critical
IMPACT:
Cross Site Scripting, Spoofing, Exposure of sensitive information
WHERE:
From remote
SOFTWARE:
Opera 7.x
http://secunia.com/product/761/
DESCRIPTION:
GreyMagic has discovered a vulnerability in Opera, allowing a
malicious website to steal sensitive information and conduct
cross-site scripting attacks.
The vulnerability is caused due to universal write access being
enabled on the "location" object. This can be exploited by replacing
methods in this object making it possible for a malicious website to
override cross-site scripting restrictions for any website or local
file.
Reportedly, this issue is related to:
SA7991
The vulnerability has been reported in version 7.53 and prior.
SOLUTION:
Update to version 7.54.
http://www.opera.com/download/
PROVIDED AND/OR DISCOVERED BY:
GreyMagic
ORIGINAL ADVISORY:
http://www.greymagic.com/security/advisories/gm008-op/
OTHER REFERENCES:
SA7991:
http://secunia.com/advisories/7991/
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