Gentoo Archives: gentoo-security

From: Chris Haumesser <ch@××××.ws>
To: gentoo-security@l.g.o
Subject: Re: [gentoo-security] Re: Out of air
Date: Wed, 10 Nov 2004 04:53:54
Message-Id: 41919EC1.5010809@awry.ws
In Reply to: [gentoo-security] Re: Out of air by Chris Frey
1 Finally, a message I can fully agree with.
2
3 As there is a quick and dirty solution to improve the situation -- even
4 with the understanding that it is not the "best" or "ideal" solution --
5 I would encourage the gentoo devs to implement it. It really doesn't
6 seem like rocket science.
7
8 I do consider it a significant problem that I cannot accurately verify
9 that everything in my portage tree came from a trusted source. Agreed,
10 MOTM attacks are not common. However, it would seem important to have
11 some sort of "audit trail" to verify that portage is what it's supposed
12 to be. Not only is this good proactive security, but it might also
13 prove useful in tracking the source of some security problem.
14
15 An interim signing solution, as mentioned already in this list, would
16 provide at least a mechanism (maybe not a great one, but one
17 nonetheless) by which a user can verify that the files downloaded to his
18 gentoo machine are those the developers intended to distribute.
19
20 I trust the devs implicitly, but I do not trust, nor can I control, most
21 of the points between them and me.
22
23 I think ultimately the existing plan, to implement full gpg signing of
24 each file in portage, is definitely the way to go. In the meantime,
25 while the infrastructure is laid for the superior, longterm proposal,
26 why not spend an hour to provide an interim, if not ideal, solution?
27
28 Devs, what have you to lose by helping us do this? I don't think I
29 understand the resistance, outside of the emotional reaction triggered
30 by this thread's initiator.
31
32
33 My $.02.
34
35
36 -C-
37
38
39
40
41 Chris Frey wrote:
42
43 >On Tue, Nov 09, 2004 at 09:05:41PM -0500, Denis Roy wrote:
44 >
45 >
46 >>>not prompted the beginning of a new initiative in signing the tree
47 >>>
48 >>>
49 >>because that was already underway. I very much doubt that it'll speed
50 >>up the progress made on that initiative, because the main limiting
51 >>factor is time. No matter what is said here, it's not going to make
52 >>anybody go out and quit their jobs in order to get tree signing
53 >>implemented quicker.
54 >>
55 >>
56 >
57 >The problem with phrasing it this way is that it implies there is only
58 >one way to address this issue. It may be true that Gentoo has decided
59 >on only one way to address the issue, but there are other ways to do it.
60 >
61 >The current development effort that is underway is not one that can be
62 >implemented overnight, but there is a solution that manages to satisfy
63 >the core needs of this thread that can be implemented overnight.
64 >
65 >The requirements are:
66 >
67 > * admin access on the main Gentoo server
68 > * a cron job
69 > * a GPG key on the server
70 > * a script to do the heavy lifting
71 >
72 >Of those items, only the script can be written by us normal users,
73 >in order to help out in the Open Source way. The people with admin
74 >access to the main Gentoo server do not appear willing to install such
75 >a script, even if someone else writes it. (And I'm sure Peter would
76 >jump at the chance to write it, and practically has already, and I'd
77 >definitely be willing to help.)
78 >
79 >I asked this before, and saw no response, so maybe it was missed in the
80 >pile of messages. I'll ask again:
81 >
82 > If someone posted a working and self-tested script to this mailing
83 > list, would Gentoo admins be willing to install it, provided it
84 > passed the peer review on this list? (i.e. contained no glaring bugs)
85 >
86 >If the answer was yes, this thread would be over.
87 >
88 >- Chris
89 >
90 >
91 >--
92 >gentoo-security@g.o mailing list
93 >
94 >
95 >

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Replies

Subject Author
Re: [gentoo-security] Re: Out of air Jason Stubbs <jstubbs@××××××××××.jp>
[gentoo-security] The solution and hopefully the end. Kurt Lieber <klieber@g.o>