Puppet 2.6.x before 2.6.12 and 2.7.x before 2.7.6, and Puppet Enterprise (PE) Users 1.0, 1.1, and 1.2 before 1.2.4, when signing an agent certificate, adds the Puppet master's certdnsnames values to the X.509 Subject Alternative Name field of the certificate, which allows remote attackers to spoof a Puppet master via a man-in-the-middle (MITM) attack against an agent that uses an alternate DNS name for the master, aka "AltNames Vulnerability."
CVSS Details
- CVSS 3.1 Base Score: 3.7
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade puppet | Jul 30, 2024 | Oct 27, 2011 |
| Gentoo Linux | — | Upgrade app-admin/puppet. | Oct 30, 2017 | Oct 27, 2011 |
| Suse | — | Upgrade puppet-serverUpgrade puppet | Dec 12, 2013 | Jun 28, 2013 |
| Ubuntu | — | Upgrade puppet-common | Nov 8, 2024 | Oct 27, 2011 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub