Bug 839158 (CVE-2012-3867) - CVE-2012-3867 puppet: insufficient validation of agent names in CN of SSL certificate requests
Summary: CVE-2012-3867 puppet: insufficient validation of agent names in CN of SSL cer...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2012-3867
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 839168 839171 839176
Blocks: 767033 836071 839173
TreeView+ depends on / blocked
 
Reported: 2012-07-11 06:34 UTC by Kurt Seifried
Modified: 2023-05-12 23:44 UTC (History)
11 users (show)

Fixed In Version: puppet 2.6.17, puppet 2.7.18
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-12-11 09:31:37 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2012:1542 0 normal SHIPPED_LIVE Moderate: CloudForms Commons 1.1 security update 2012-12-05 00:29:06 UTC

Description Kurt Seifried 2012-07-11 06:34:23 UTC 
From puppet labs: CVE-2012-3867 (Insufficient input validation)

A bug in Puppet 2.6.16 and 2.7.17 uses insufficient input validation for agent
certificate names.

An attacker can trick the administrator into signing an attacker’s certificate 
rather than the intended one by constructing specially crafted certificate 
requests containing specific ANSI control sequences. It is possible to use the 
sequences to rewrite the order of text displayed to an administrator such that 
display of an invalid certificate and valid certificate are transposed. If the 
administrator signs the attacker’s certificate, the attacker can then 
man-in-the-middle the deployment’s agent nodes.

Resolved in Puppet 2.6.17, 2.7.18
Comment 1 Kurt Seifried 2012-07-11 06:43:13 UTC 
Created puppet tracking bugs for this issue

Affects: fedora-17 [bug 839168]
Comment 2 Kurt Seifried 2012-07-11 06:47:38 UTC 
Created puppet tracking bugs for this issue

Affects: fedora-16 [bug 839171]
Comment 4 Kurt Seifried 2012-07-12 02:37:16 UTC 
External Reference:

http://puppetlabs.com/security/cve/cve-2012-3867/
Comment 5 Tomas Hoger 2012-07-12 10:13:32 UTC 
Related upstream commits:

2.6:
https://github.com/puppetlabs/puppet/commit/dfedaa5
https://github.com/puppetlabs/puppet/commit/9607bd7
https://github.com/puppetlabs/puppet/commit/0144e68

2.7:
https://github.com/puppetlabs/puppet/commit/4d7c9fd
https://github.com/puppetlabs/puppet/commit/bd2820e
https://github.com/puppetlabs/puppet/commit/f341962
Comment 6 Fedora Update System 2012-07-28 01:17:29 UTC 
puppet-2.6.17-2.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 7 Fedora Update System 2012-07-28 01:20:18 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.
Comment 8 Fedora Update System 2012-08-05 06:37:58 UTC 
puppet-2.6.17-2.el5 has been pushed to the Fedora EPEL 5 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 9 Fedora Update System 2012-08-05 06:38:54 UTC 
puppet-2.6.17-2.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 10 Murray McAllister 2012-12-03 06:09:55 UTC 
Acknowledgements:

Red Hat would like to thank Puppet Labs for reporting this issue.
Comment 11 errata-xmlrpc 2012-12-04 19:31:43 UTC 
This issue has been addressed in following products:

  CloudForms for RHEL 6

Via RHSA-2012:1542 https://rhn.redhat.com/errata/RHSA-2012-1542.html
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