Bug 839158 - (CVE-2012-3867) CVE-2012-3867 puppet: insufficient validation of agent names in CN of SSL certificate requests
CVE-2012-3867 puppet: insufficient validation of agent names in CN of SSL cer...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20120710,reported=2...
: Security
Depends On: 839168 839171 839176
Blocks: 767033 836071 839173
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Reported: 2012-07-11 02:34 EDT by Kurt Seifried
Modified: 2012-12-11 04:31 EST (History)
11 users (show)

See Also:
Fixed In Version: puppet 2.6.17, puppet 2.7.18
Doc Type: Bug Fix
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Last Closed: 2012-12-11 04:31:37 EST
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RHEL 7.3 requirements from Atomic Host:


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Description Kurt Seifried 2012-07-11 02:34:23 EDT
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 02:43:13 EDT
Created puppet tracking bugs for this issue

Affects: fedora-17 [bug 839168]
Comment 2 Kurt Seifried 2012-07-11 02:47:38 EDT
Created puppet tracking bugs for this issue

Affects: fedora-16 [bug 839171]
Comment 4 Kurt Seifried 2012-07-11 22:37:16 EDT
External Reference:

http://puppetlabs.com/security/cve/cve-2012-3867/
Comment 6 Fedora Update System 2012-07-27 21:17:29 EDT
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 2012-07-27 21:20:18 EDT
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 02:37:58 EDT
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 02:38:54 EDT
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 01:09:55 EST
Acknowledgements:

Red Hat would like to thank Puppet Labs for reporting this issue.
Comment 11 errata-xmlrpc 2012-12-04 14:31:43 EST
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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