Mailinglist Archive


SECURITY HOLE, fixed in PuTTY 0.55
From:Joe Klemmer
Date: Wed, 04 Aug 2004 13:50:43 -0400

	I know that many people use PuTTY for ssh connections.  It's probably a
good idea to upgrade.


2004-08-03 SECURITY HOLE, fixed in PuTTY 0.55

PuTTY 0.55, released today, fixes a serious security hole which may
allow a server to execute code of its choice on a PuTTY client
connecting to it. In SSH2, the attack can be performed before host key
verification, meaning that even if you trust the server you think you
are connecting to, a different machine could be impersonating it and
could launch the attack before you could tell the difference. We
recommend everybody upgrade to 0.55 as soon as possible.

http://www.chiark.greenend.org.uk/~sgtatham/putty/

-- 
Joe Klemmer 
Unix System/Network Administrator & Ad Hoc Programmer