Bug 839166 (CVE-2012-3408) - CVE-2012-3408 puppet: possible host impersonation when using certificates issues for IP address
Summary: CVE-2012-3408 puppet: possible host impersonation when using certificates iss...
Alias: CVE-2012-3408
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 839168 839171
Blocks: 767033 839173
TreeView+ depends on / blocked
Reported: 2012-07-11 06:40 UTC by Kurt Seifried
Modified: 2019-09-29 12:53 UTC (History)
11 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-07-12 10:11:55 UTC

Attachments (Terms of Use)

Description Kurt Seifried 2012-07-11 06:40:42 UTC
From puppet labs: Puppet agents with certnames of IP addresses can be impersonated

This affects Puppet 2.6.16 and 2.7.17

If an authenticated host with a certname of an IP address changes IP
addresses, and a second host assumes the first host's former IP
address, the second host will be treated by the puppet master as the
first one, giving the second host access to the first host's catalog.
Note: This will not be fixed in Puppet versions prior to the forthcoming
3.x. Instead, with this announcement IP-based authentication in
Puppet < 3.x is deprecated.

Resolved in Puppet 2.6.17, 2.7.18

Comment 1 Kurt Seifried 2012-07-11 06:43:31 UTC
Created puppet tracking bugs for this issue

Affects: fedora-17 [bug 839168]

Comment 2 Kurt Seifried 2012-07-11 06:47:56 UTC
Created puppet tracking bugs for this issue

Affects: fedora-16 [bug 839171]

Comment 4 Kurt Seifried 2012-07-12 02:37:25 UTC
External Reference:


Comment 5 Tomas Hoger 2012-07-12 10:11:55 UTC
This was only addressed in 2.7.  It was not really fixed, the change rather introduces deprecation warning:


No real fix is planned for this issue in puppet 2.x versions.  Hence no update is planned for Red Hat products that include puppet 2.x versions to address this problem.

Comment 6 Fedora Update System 2012-07-28 01:20:27 UTC
puppet-2.7.18-1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

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