PuTTY through 0.75 proceeds with establishing an SSH session even if it
has never sent a substantive authentication response. This makes it
easier for an attacker-controlled SSH server to present a later spoofed
authentication prompt (that the attacker can use to capture credential
data, and use that data for purposes that are undesired by the client
user).
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 1352b59eb2e48162af13d37287c00c23776b02bb)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
396efe0903