From: David Engster <deng@randomsample.de>
To: Richard Copley <rcopley@gmail.com>
Cc: 22202@debbugs.gnu.org, Demetri Obenour <demetriobenour@gmail.com>
Subject: bug#22202: 24.5; SECURITY ISSUE -- Emacs Server vulnerable to random number generator attack on Windows systems
Date: Tue, 29 Dec 2015 23:02:55 +0100 [thread overview]
Message-ID: <87poxo7w1c.fsf@isaac.fritz.box> (raw)
In-Reply-To: <CAPM58ogeYY3aggKi=7tPDfxoFdmh58fN_tAcPDjHsQW0WdY9ow@mail.gmail.com> (Richard Copley's message of "Tue, 29 Dec 2015 21:22:55 +0000")
Richard Copley writes:
>>> [...]
>>
>> That's correct (it requires a Windows Server with enabled terminal
>> services), but each user session has of course its own process space, so
>> I don't see how the described attack could work there.
>
> Not sure what you mean by process space. As an unprivileged user
> you can find other users' Emacs processes without any effort (using
> tasklist.exe, for example). If you know on what port an Emacs server
> is listening (which is admittedly a difficulty), you can send bytes to it.
> I've just done so as an experiment. (I was driving both sessions so I
> knew the server port.)
You logged in with two different user accounts? I always thought
sessions from different users were better isolated from one another and
more similar to Linux containers. If that is not the case, then I agree
the attack scenario looks feasible.
-David
next prev parent reply other threads:[~2015-12-29 22:02 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-18 10:05 bug#22202: 24.5; SECURITY ISSUE -- Emacs Server vulnerable to random number generator attack on Windows systems Demetri Obenour
2015-12-18 10:46 ` Eli Zaretskii
2015-12-29 15:36 ` Richard Copley
2015-12-29 16:21 ` Eli Zaretskii
2015-12-29 17:44 ` Richard Copley
2015-12-29 20:00 ` David Engster
2015-12-29 21:22 ` Richard Copley
2015-12-29 22:02 ` David Engster [this message]
2015-12-29 23:13 ` Richard Copley
2015-12-30 15:58 ` Eli Zaretskii
2015-12-30 20:47 ` Richard Copley
2015-12-30 20:56 ` Richard Copley
2015-12-30 20:56 ` Eli Zaretskii
2015-12-30 21:15 ` Richard Copley
2015-12-31 14:14 ` Eli Zaretskii
2015-12-31 17:04 ` Demetrios Obenour
2015-12-31 17:24 ` Eli Zaretskii
2015-12-31 17:47 ` Richard Copley
2015-12-31 18:22 ` Eli Zaretskii
2015-12-31 19:20 ` Eli Zaretskii
2015-12-31 19:49 ` Richard Copley
2015-12-31 20:13 ` Eli Zaretskii
2015-12-31 20:44 ` Richard Copley
2016-01-15 9:55 ` Eli Zaretskii
2016-01-17 20:26 ` Paul Eggert
2016-01-18 1:42 ` Paul Eggert
2016-01-18 14:40 ` Richard Copley
2016-01-18 16:05 ` Eli Zaretskii
2016-01-18 16:20 ` Richard Copley
2016-01-18 15:45 ` Eli Zaretskii
2016-01-18 20:50 ` Paul Eggert
2016-01-18 21:09 ` Eli Zaretskii
2016-01-19 5:34 ` Paul Eggert
2016-01-19 16:24 ` Eli Zaretskii
2016-01-19 17:03 ` John Wiegley
2016-01-19 17:38 ` Paul Eggert
2016-01-19 18:44 ` Eli Zaretskii
2016-01-19 17:07 ` Paul Eggert
2016-01-19 18:16 ` Eli Zaretskii
2016-01-20 0:39 ` Paul Eggert
2016-01-18 12:04 ` Andy Moreton
2016-01-18 15:57 ` Eli Zaretskii
2016-01-18 23:03 ` John Wiegley
2016-01-19 21:48 ` Andy Moreton
2016-01-20 3:31 ` Glenn Morris
2016-01-20 14:06 ` Andy Moreton
2016-01-20 14:12 ` Eli Zaretskii
2016-01-20 15:15 ` Andy Moreton
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