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Opera SSL RSA Signature Forgery Vulnerability
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Secunia Advisory:
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SA21982
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Release Date:
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2006-09-18
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Last Update:
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2006-09-22
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Critical:
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Less critical
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Impact:
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Security Bypass
Spoofing
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Opera 9.x
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Description:
A vulnerability has been reported in Opera, which can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is due to an error within the verification of certain signatures. This can be exploited to spoof certificates when the signing certificate uses an RSA public exponent of 3.
This is related to:
SA21709
The vulnerability has been reported in version 9.01. Other versions may also be affected.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.
Solution:
Update to version 9.02.
http://www.opera.com/download/
Provided and/or discovered by:
Originally reported in OpenSSL by Daniel Bleichenbacher.
Reported in Opera by Erik Tews, Alexander May, and Ralf-Philipp Weinmann.
Changelog:
2006-09-20: Updated "Solution" section.
2006-09-22: Updated "Solution" section.
Original Advisory:
Erik Tews:
http://www.cdc.informatik.tu-darmstadt.de/securebrowser/
Opera:
http://www.opera.com/support/search/supsearch.dml?index=845
Other References:
SA21709:
http://secunia.com/advisories/21709/
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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