Subject: Secunia Research: Opera SSL Certificate "Stealing" Weakness
From: Secunia Research <remove-vuln@secunia.com.>
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Organization: Secunia
Date: Wed, 28 Jun 2006 10:08:30 +0200
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Secunia Research 28/06/2006
- Opera SSL Certificate "Stealing" Weakness -
Table of Contents
Affected Software....................................................1
Severity.............................................................2
Description of Vulnerabilities.......................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Secunia........................................................8
Verification.........................................................9
1) Affected Software
Opera 8.54
Prior versions may also be affected.
2) Severity
Rating: Not critical
Impact: Spoofing
Where: From remote
3) Description of Vulnerabilities
Secunia Research has discovered a weakness in Opera, which can be
exploited to display the SSL certificate from a trusted site on an
untrusted site.
The weakness is caused due to Opera not resetting the SSL security
bar after displaying a download dialog from a SSL enabled web site.
This allows an untrusted web site to display yellow SSL security bar
from a trusted web site.
NOTE: A more convincing exploit can be done using pop-up windows,
which do not have a visible address bar.
4) Solution
Upgrade to version 9.0.
5) Time Table
31/03/2006 - Initial vendor notification.
28/06/2006 - Public disclosure.
6) Credits
Discovered by Jakob Balle, Secunia Research.
7) References
No references available.
8) About Secunia
Secunia collects, validates, assesses, and writes advisories regarding
all the latest software vulnerabilities disclosed to the public. These
advisories are gathered in a publicly available database at the
Secunia website:
http://secunia.com/
Secunia offers services to our customers enabling them to receive all
relevant vulnerability information to their specific system
configuration.
Secunia offers a FREE mailing list called Secunia Security Advisories:
http://secunia.com/secunia_security_advisories/
9) Verification
Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2006-49/advisory/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
