9 - RHSA-2013:0710

Problem Description:

Updated puppet packages that fix several security issues are now available for Red Hat OpenStack Folsom.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

OpenStack Folsom - noarch

3. Description:

Puppet allows provisioning, patching, and configuration of clients to be managed and automated.

A flaw was found in how Puppet handled certain HTTP PUT requests. An attacker with valid authentication credentials, and authorized to save to the authenticated client's own report, could construct a malicious request that could possibly cause the Puppet master to execute arbitrary code. (CVE-2013-2274)

A flaw was found in how Puppet handled the "template" and "inline_template" functions during catalog compilation. If an authenticated attacker were to requests its catalog from the Puppet master, it could possibly result in arbitrary code execution when the catalog is compiled. (CVE-2013-1640)

A flaw was found in how Puppet handled certain HTTP GET requests. An attacker with valid authentication credentials could construct a request to retrieve catalogs from the Puppet master that they are not authorized to access. (CVE-2013-1652)

It was found that the default /etc/puppet/auth.conf configuration file allowed an authenticated node to submit a report for any other node, which could breach compliance requirements. (CVE-2013-2275)

It was found that the /var/log/puppet directory was created world-readable. This could allow local users to obtain sensitive information from the Puppet log files. (CVE-2012-6120)

It was found that Puppet allowed the use of the SSLv2 protocol. A Puppet agent could use this to negotiate the use of the weak SSLv2 protocol for its connection to a Puppet master. (CVE-2013-1654)

Red Hat would like to thank Puppet Labs for reporting CVE-2013-1640, CVE-2013-1652, CVE-2013-1654, CVE-2013-2274, and CVE-2013-2275.

Note: In most default configurations these issues are not directly exploitable unless the attacker has access to the underlying OpenStack infrastructure (e.g. shell access to a Nova compute node).

Users of Red Hat OpenStack Folsom are advised to upgrade to these updated packages, which upgrade Puppet to version 2.6.18 and correct these issues.

4. Solution:

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

5. Bugs fixed (http://bugzilla.redhat.com/):

908629 - CVE-2012-6120 Puppet: Directory /var/log/puppet is world readable 919770 - CVE-2013-1654 Puppet: SSL protocol downgrade 919773 - CVE-2013-2274 Puppet: HTTP PUT report saving code execution vulnerability 919783 - CVE-2013-1640 Puppet: catalog request code execution 919784 - CVE-2013-1652 Puppet: HTTP GET request catalog retrieval 919785 - CVE-2013-2275 Puppet: default auth.conf allows authenticated node to submit a report for any other node