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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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Popularity:
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19,989 views
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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.
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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About this Secunia Advisory
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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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