USN-1506-1: Puppet vulnerabilities

Releases

• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.04

Packages

• puppet - Centralized configuration management

Details

It was discovered that Puppet incorrectly handled certain HTTP GET
requests. An attacker could use this flaw with a valid client certificate
to retrieve arbitrary files from the Puppet primary server.
(CVE-2012-3864)

It was discovered that Puppet incorrectly handled Delete requests. If a
Puppet primary server were reconfigured to allow the "Delete" method, an
attacker on an authenticated host could use this flaw to delete arbitrary
files from the Puppet server, leading to a denial of service.
(CVE-2012-3865)

It was discovered that Puppet incorrectly set file permissions on the
last_run_report.yaml file. An attacker could use this flaw to access
sensitive information. This issue only affected Ubuntu 11.10 and Ubuntu
12.04 LTS. (CVE-2012-3866)

It was discovered that Puppet incorrectly handled agent certificate names.
An attacker could use this flaw to create a specially crafted certificate
and trick an administrator into signing a certificate that can then be used
to machine-in-the-middle agent nodes. (CVE-2012-3867)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04

• puppet-common - 2.7.11-1ubuntu2.1

Ubuntu 11.10

• puppet-common - 2.7.1-1ubuntu3.7

Ubuntu 11.04

• puppet-common - 2.6.4-2ubuntu2.10

Ubuntu 10.04

• puppet-common - 0.25.4-2ubuntu6.8

In general, a standard system update will make all the necessary changes.

References

• CVE-2012-3864
• CVE-2012-3865
• CVE-2012-3866
• CVE-2012-3867