Netscape Communicator Inconsistent SSL Certificate Warning Vulnerability

From the CERT Advisory (see Credit):

A flaw exists in Netscape Navigator that could allow an attacker to masquerade as a legitimate web site if the attacker can compromise the validity of certain DNS information. This is different from the problem reported in CERT Advisory CA-2000-05, but it has a similar impact.

Within one Netscape session, if a user clicks on "continue" in response to a "hostname does not match name in certificate" error, then that certificate is incorrectly validated for future use in the Netscape session, regardless of the hostname or IP address of other servers that use the certificate.


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