KDE Konqueror 3.5.5 and 3.95.00, when a user accepts an SSL server certificate on the basis of the CN domain name in the DN field, regards the certificate as also accepted for all domain names in subjectAltName:dNSName fields, even though these fields cannot be examined in the product, which makes it easier for remote attackers to trick a user into accepting an invalid certificate for a spoofed web site.
CVSS Severity (version 2.0):
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information
Official Statement from Red Hat (01/10/2008)
Red Hat is aware of this issue and is tracking it via the following bug:
The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw. More information regarding issue severity can be found here:
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20071118 Certificate spoofing issue with Mozilla, Konqueror, Safari 2
20071118 Re: Certificate spoofing issue with Mozilla, Konqueror, Safari 2
20071118 RE: Certificate spoofing issue with Mozilla, Konqueror, Safari 2
Vulnerable software and versions