Re: [secdir] SecDir review of draft-ietf-sieve-notify-presence-02
Barry Leiba <barryleiba@computer.org> Sun, 14 November 2010 00:49 UTC
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Date: Sun, 14 Nov 2010 08:49:56 +0800
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From: Barry Leiba <barryleiba@computer.org>
To: Stefan Santesson <stefan@aaa-sec.com>
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Cc: iesg@ietf.org, draft-ietf-sieve-notify-presence.all@tools.ietf.org, secdir@ietf.org
Subject: Re: [secdir] SecDir review of draft-ietf-sieve-notify-presence-02
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Thanks for the review, Stefan. > One thing that strikes me as possibly relevant is if this in any way can be > a means (in some variants of it's use) through which a spammer can gain > information about the status of the recipient. We had thought of that, but I thought enough was said. Probably not, so I intend to add this paragraph to the security considerations, already in my working copy: --- In some situations, scripts may act on some of the recipient's presence information that the sender of the triggering message is not allowed to see. This can be a benefit to the recipient in many cases, but it can also present an opportunity for a sender to use messages to probe the recipient's presence (if, for example, messages sometimes result in auto-replies, and sometimes do not). Script authors should take care in considering this aspect of presence-triggered actions. --- Does that address your concern adequately? Barry
- [secdir] SecDir review of draft-ietf-sieve-notify… Stefan Santesson
- Re: [secdir] SecDir review of draft-ietf-sieve-no… Barry Leiba