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Red Hat OpenStack 3.0: RHSA-2013-1283 Moderate: Puppet Code Risks

Redhat Large Esm H500
Updated puppet packages that fix several security issues are now available for Red Hat OpenStack 3.0. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores,
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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: puppet security update
Advisory ID:       RHSA-2013:1283-01
Product:           Red Hat OpenStack
Advisory URL:      https://access.redhat.com/errata/RHSA-2013:1283.html
Issue date:        2013-09-24
CVE Names:         CVE-2013-3567 CVE-2013-4761 CVE-2013-4956 
====================================================================
1. Summary:

Updated puppet packages that fix several security issues are now available
for Red Hat OpenStack 3.0.

The Red Hat Security Response Team has rated this update as having moderate
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 3 - noarch, x86_64

3. Description:

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

A flaw was found in the way Puppet handled YAML content during
Representational State Transfer (REST) API calls. An attacker could
construct a request containing a crafted YAML payload that would cause the
Puppet master to execute arbitrary code. (CVE-2013-3567)

It was found that resource_type requests could be used to cause the Puppet
master to load and run Ruby files from anywhere on the file system. In
non-default configurations, a local user on the Puppet master server could
use this flaw to have arbitrary Ruby code executed with the privileges of
the Puppet master. (CVE-2013-4761)

It was found that Puppet Module Tool (that is, running "puppet module"
commands from the command line) applied incorrect permissions to installed
modules. If a malicious, local user had write access to the Puppet module
directory, they could use this flaw to modify the modules and therefore
execute arbitrary code with the privileges of the Puppet master.
(CVE-2013-4956)

Red Hat would like to thank Puppet Labs for reporting these issues.
Upstream acknowledges Ben Murphy as the original reporter of CVE-2013-3567.

Note: OpenStack uses these puppet packages with PackStack, a command line
utility that uses Puppet modules to support rapid deployment of OpenStack
on existing servers over an SSH connection. The Puppet master is not used
in this configuration, and as such, CVE-2013-3567 and CVE-2013-4761 are not
exploitable in this OpenStack use case.

Users of Red Hat OpenStack 3.0 are advised to upgrade to these updated
packages, which 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/site/articles/11258

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

974649 - CVE-2013-3567 puppet: remote code execution on master from unauthenticated clients
996855 - CVE-2013-4956 Puppet: Local Privilege Escalation/Arbitrary Code Execution
996856 - CVE-2013-4761 Puppet: resource_type service code execution

6. Package List:

OpenStack 3:

Source:

noarch:
hiera-1.0.0-3.el6_4.noarch.rpm
puppet-3.2.4-1.el6_4.noarch.rpm
puppet-server-3.2.4-1.el6_4.noarch.rpm

x86_64:
facter-1.6.6-1.el6_4.x86_64.rpm
ruby-augeas-0.4.1-1.el6_4.x86_64.rpm
ruby-augeas-debuginfo-0.4.1-1.el6_4.x86_64.rpm
ruby-shadow-1.4.1-13.el6_4.x86_64.rpm
ruby-shadow-debuginfo-1.4.1-13.el6_4.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key#package

7. References:

https://access.redhat.com/security/cve/CVE-2013-3567
https://access.redhat.com/security/cve/CVE-2013-4761
https://access.redhat.com/security/cve/CVE-2013-4956
https://access.redhat.com/security/updates/classification#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact

Copyright 2013 Red Hat, Inc.
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Red Hat OpenStack 3.0: RHSA-2013-1283 Moderate: Puppet Code Risks

red hat
Calendar Grey September 24, 2013
Dist Redhat Esm H88
An essential security patch for Red Hat OpenStack 3.0 tackles various puppet vulnerabilities and potential remote code execution threats.
Updated puppet packages that fix several security issues are now available for Red Hat OpenStack 3.0

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/site/articles/11258

Summary

Puppet allows provisioning, patching, and configuration of clients to be managed and automated.
A flaw was found in the way Puppet handled YAML content during Representational State Transfer (REST) API calls. An attacker could construct a request containing a crafted YAML payload that would cause the Puppet master to execute arbitrary code. (CVE-2013-3567)
It was found that resource_type requests could be used to cause the Puppet master to load and run Ruby files from anywhere on the file system. In non-default configurations, a local user on the Puppet master server could use this flaw to have arbitrary Ruby code executed with the privileges of the Puppet master. (CVE-2013-4761)
It was found that Puppet Module Tool (that is, running "puppet module" commands from the command line) applied incorrect permissions to installed modules. If a malicious, local user had write access to the Puppet module directory, they could use this flaw to modify the modules and therefore execute arbitrary code with the privileges of the Puppet master. (CVE-2013-4956)
Red Hat would like to thank Puppet Labs for reporting these issues. Upstream acknowledges Ben Murphy as the original reporter of CVE-2013-3567.
Note: OpenStack uses these puppet packages with PackStack, a command line utility that uses Puppet modules to support rapid deployment of OpenStack on existing servers over an SSH connection. The Puppet master is not used in this configuration, and as such, CVE-2013-3567 and CVE-2013-4761 are not exploitable in this OpenStack use case.
Users of Red Hat OpenStack 3.0 are advised to upgrade to these updated packages, which correct these issues.

References

https://access.redhat.com/security/cve/CVE-2013-3567 https://access.redhat.com/security/cve/CVE-2013-4761 https://access.redhat.com/security/cve/CVE-2013-4956 https://access.redhat.com/security/updates/classification#moderate

Package List

OpenStack 3:
Source:
noarch: hiera-1.0.0-3.el6_4.noarch.rpm puppet-3.2.4-1.el6_4.noarch.rpm puppet-server-3.2.4-1.el6_4.noarch.rpm
x86_64: facter-1.6.6-1.el6_4.x86_64.rpm ruby-augeas-0.4.1-1.el6_4.x86_64.rpm ruby-augeas-debuginfo-0.4.1-1.el6_4.x86_64.rpm ruby-shadow-1.4.1-13.el6_4.x86_64.rpm ruby-shadow-debuginfo-1.4.1-13.el6_4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key#package


Advisory ID: RHSA-2013:1283-01
Product: Red Hat OpenStack
Issue date: 2013-09-24

Topic

Updated puppet packages that fix several security issues are now availablefor Red Hat OpenStack 3.0.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Relevant Releases Architectures

OpenStack 3 - noarch, x86_64

Bugs Fixed

974649 - CVE-2013-3567 puppet: remote code execution on master from unauthenticated clients

996855 - CVE-2013-4956 Puppet: Local Privilege Escalation/Arbitrary Code Execution

996856 - CVE-2013-4761 Puppet: resource_type service code execution

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