RE: SSL - Man-in-the-Middle filtering

["Alexandru Bradescu-Popa" <alexbp () alexbp ro>]

Any interference in any communication (encrypted or not) is penalized by the
law if it's not done in some specific ways (the peers should know that they
are interfered, the interferer is having a legal allowance to interfer etc.)

______________________________________________________________
Frank, whatever it is, just write it down and put it on my desk where I
can't find it.
Henry Blake - M*A*S*H

-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On
Behalf Of Marian Ion
Sent: 11 decembrie 2007 08:07
To: focus-ids () securityfocus com
Subject: RE: SSL - Man-in-the-Middle filtering


Isn't this an interference in an encrypted communication, penalized by the
law? And ... as a user, how can you trust the confidentiality this
communication when you found out about?

marian



-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On
Behalf Of Ravi Chunduru
Sent: 08 December 2007 18:33
To: focus-ids () securityfocus com
Subject: SSL - Man-in-the-Middle filtering

it seems that some network IPS devices and application firewalls are
not only providing SSL based HTTP inspection on server side, but also
on client side (i know  of one IPS device which is in beta testing).
i understand that it is required as attacks can be sent in SSL to
avoid blocking.

when deployed on client side, these devices resign certificates (of
public servers) with local CA certificate. i see two aspects to it -
users need to trust local authority (enterprise administrators) and
second is users will have  false sense of security (that is users are
no longer see the actual CA of server certificate).

any comments on acceptance of this functionality in enterprise deployments?

is there any standard mechanism (in SSL standard or in HTTP standard)
to send actual CA certificate to the browser by forward proxies?

thanks
Ravi

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Test Your IDS

Is your IDS deployed correctly?
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to learn more.
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