Full Disclosure mailing list archives

Using second gpg keyring may be misleading?

From: Georgi Guninski <guninski () guninski com>
Date: Thu, 14 Jun 2012 17:17:49 +0300

There is chance someone exploits this in apt-key...

Attached is a keyring and here is the output:

$rm -rf /home/joro2/.gnupg/ ; gpg --import /usr/share/keyrings/ubuntu-master-keyring.gpg ; gpg --check-sigs --keyring 
/tmp/sec3
gpg:               imported: 1  (RSA: 1)
gpg: no ultimately trusted keys found
/home/joro2/.gnupg/pubring.gpg
------------------------------
pub   4096R/3F272F5B 2007-11-09
uid                  Ubuntu Archive Master Signing Key <ftpmaster () ubuntu com>
sig!3        3F272F5B 2007-11-09  Ubuntu Archive Master Signing Key <ftpmaster () ubuntu com>

/tmp/sec3
---------
pub   1024R/B1C08810 2012-06-14
uid                  kkkkkkk5 <k@k>
sig!3        B1C08810 2012-06-14  [User ID not found]
sig!         3F272F5B 2012-06-14  Ubuntu Archive Master Signing Key <ftpmaster () ubuntu com>
sig!         3F272F5B 2012-06-14  Ubuntu Archive Master Signing Key <ftpmaster () ubuntu com>
sub   1024R/0354AE88 2012-06-14
sig!         B1C08810 2012-06-14  [User ID not found]
sub   2179R/3F272F5B 2012-06-14
sig!         B1C08810 2012-06-14  [User ID not found]

1 signature not checked due to a missing key


$rm -rf /home/joro2/.gnupg/ ; gpg --import /usr/share/keyrings/ubuntu-master-keyring.gpg ; gpg --no-default-keyring 
--check-sigs --keyring /tmp/sec3

gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
gpg: no ultimately trusted keys found
/tmp/sec3
---------
pub   1024R/B1C08810 2012-06-14
uid                  kkkkkkk5 <k@k>
sig!3        B1C08810 2012-06-14  kkkkkkk5 <k@k>
sig!         3F272F5B 2012-06-14  kkkkkkk5 <k@k>
sig!         3F272F5B 2012-06-14  kkkkkkk5 <k@k>
sub   1024R/0354AE88 2012-06-14
sig!         B1C08810 2012-06-14  kkkkkkk5 <k@k>
sub   2179R/3F272F5B 2012-06-14
sig!         B1C08810 2012-06-14  kkkkkkk5 <k@k>

Attachment: sec3
Description:

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Current thread:

Using second gpg keyring may be misleading? Georgi Guninski (Jun 14)
- Re: Using second gpg keyring may be misleading? Thor (Hammer of God) (Jun 14)
  - Re: Using second gpg keyring may be misleading? Georgi Guninski (Jun 15)
    - Re: Using second gpg keyring may be misleading? Thor (Hammer of God) (Jun 15)