oss-sec mailing list archives

Re: gpg blindly imports keys from keyserver responses


From: Kristian Fiskerstrand <kristian.fiskerstrand () sumptuouscapital com>
Date: Mon, 01 Sep 2014 22:05:11 +0200

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On 09/01/2014 09:43 PM, mancha wrote:
On Mon, Sep 01, 2014 at 08:41:10PM +0200, Kristian Fiskerstrand
wrote:

My personal opinion is this is expected behavior as the
keyservers are not trusted, and as you point out above, there are
proper measures that should be used that invalidate this as an
attack vector, i.e. by performing proper key verification.

Hi.

Isn't it the opposite? Were key servers fully trusted I'd agree 
"expected behavior" would be to blindly import the server's reply.

However, the lack of trustworthiness of keyservers is precisely why
the check is relevant.

I'd consider it security hardening and not a vulnerability.

...


--mancha

PS Thijs' email signature verified for me using mutt. What is your
email client-side configuration?


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- -- 
- ----------------------------
Kristian Fiskerstrand
Blog: http://blog.sumptuouscapital.com
Twitter: @krifisk
- ----------------------------
Public OpenPGP key 0xE3EDFAE3 at hkp://pool.sks-keyservers.net
fpr:94CB AFDD 3034 5109 5618 35AA 0B7F 8B60 E3ED FAE3
- ----------------------------
Adde parvum parvo magnus acervus erit
Add little to little and there will be a big pile
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