Gentoo Archives: gentoo-security

From: Rui Covelo <rpfc@××××××××××××.pt>
To: Peter Simons <simons@××××.to>
Cc: gentoo-security@l.g.o
Subject: Re: [gentoo-security] Re: Is anybody else worried about this?
Date: Sun, 07 Nov 2004 15:45:50
Message-Id: 418E4311.6070105@mega.ist.utl.pt
In Reply to: [gentoo-security] Re: Is anybody else worried about this? by Peter Simons
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8 Peter Simons wrote:
9 | This problem has nothing to do with trusted or untrusted
10 | code, it is about data integrity. Or, more accurately, about
11 | _lack_ thereof.
12
13 Security is always about trust. You have to trust someone or something.
14 Data, keys, servers, admins, protocols, passwords, algorithms, something...
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16
17 | > (1) the server has not been compromised
18 |
19 | How do I very this? Is there a list of SHA1 hashes of all
20 | files /usr/portage is supposed to contain?
21
22 Where would you store that list? In a trusted server? Would you trust
23 the server admin of that server?
24
25
26 | > (3) the server operator is trustworthy
27 | > (4) the person that originally created the software is trustworthy
28 | > (5) the server operator's are sufficiently skilled to protect the
29 software
30 | > (6) the person that originally created the software is suffciently
31 skilled
32 | > to protect it
33 |
34 | None of these points are relevant for the problem we are
35 | talking about. If Gentoo provides proper means of
36 | authenticating the data I receive from the mirror, I don't
37 | _need_ to trust the mirror's operator.
38
39 You need to trust the operator of the authentication server...
40
41
42 | > However, none of those issues is specific to Gentoo or
43 | > Open Source as a whole.
44 |
45 | The fact that other projects have the same problem doesn't
46 | mean that the problem shouldn't be fixed in Gentoo.
47
48 Agreed! This issue is important.
49
50
51 | > IMO the purely technical issues have been solved mostly.
52 | > However, those are smallest and least important part.
53 |
54 | So how long will it (approximately) take until this problem
55 | is fixed?
56
57 Well... I guess until someone comes up with a solution! Not the problem!
58 The problem is already known. Gentoo is based on the comunity. The
59 comunity has to come up with solutions. Not wait for highly payd
60 developers to solve everything like in some known corporations. At least
61 ~ this is how I see Gentoo. Maybe I'm wrong...
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64 Alex's ideia looks interesting:
65 | Just a question : could it be a good idea to move md5 on another server
66 | or to do 'emerge sync' asking for files on server A and digest files on
67 | server B where server B is any server in gentoo rsync rollover but not
68 | server A...
69 |
70 | Then, person have to compromise server A and server B to get his hack
71 | working...
72 |
73 | Hope this help
74 |
75 | Cheers
76
77 Redundancy could be a way to mitigate this problem. It wont solve it thou...
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81 - ---
82 Rui Covelo
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96 --
97 gentoo-security@g.o mailing list

Replies

Subject Author
[gentoo-security] Re: Re: Is anybody else worried about this? Chris Frey <cdfrey@×××××××××.ca>