CVE-2012-3408: lib/puppet/network/authstore.rb in Puppet before 2.7.18, and Puppet Enterprise before 2.5.2, supports use of I

Q: How do I fix CVE-2012-3408?

puppet enterprise: upgrade to 2.5.2; puppet: upgrade to 2.7.18. Exact commands for each OS are on this page.

Q: Is CVE-2012-3408 being exploited?

CVE-2012-3408 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2012-3408 affect?

CVE-2012-3408 affects puppet enterprise, puppet. Severity is low (CVSS 2.6). lib/puppet/network/authstore.rb in Puppet before 2.7.18, and Puppet Enterprise before 2.5.2, supports use of IP addresses in certnames without warning of potential risks, which might allow remote attackers to spoof an agent by acquiring a p

Q: How urgent is CVE-2012-3408?

Priority 33/100. Public exploit reference

Routine

LOW 2.6UPGRADEUPGRADE

CVE-2012-3408 is a low-severity flaw (CVSS 2.6) affecting puppet enterprise, puppet. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

lib/puppet/network/authstore.rb in Puppet before 2.7.18, and Puppet Enterprise before 2.5.2, supports use of IP addresses in certnames without warning of potential risks, which might allow remote attackers to spoof an agent by acquiring a previously used IP address.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	2.6 (Low)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-287
Published	2012-08-06
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: puppet · puppetlabs

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-08-06 16:55 UTCPublished CVE record published
2026-06-16 23:43 UTCUpdated Record last modified

puppet puppet enterprise UPGRADE

Affected: < 2.5.2

Fixed in: 2.5.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy puppet-enterprise || rpm -q puppet-enterprise || puppet-enterprise --version

2. UPGRADE to 2.5.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade puppet-enterprise

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade puppet-enterprise

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

puppetlabs puppet UPGRADE

Affected: < 2.7.18

Fixed in: 2.7.18

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy puppet || rpm -q puppet || puppet --version

2. UPGRADE to 2.7.18 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade puppet

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade puppet

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2012-3408?

puppet enterprise: upgrade to 2.5.2; puppet: upgrade to 2.7.18. Exact commands for each OS are on this page.

Is CVE-2012-3408 being exploited?

CVE-2012-3408 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2012-3408 affect?

CVE-2012-3408 affects puppet enterprise, puppet. Severity is low (CVSS 2.6). lib/puppet/network/authstore.rb in Puppet before 2.7.18, and Puppet Enterprise before 2.5.2, supports use of IP addresses in certnames without warning of potential risks, which might allow remote attackers to spoof an agent by acquiring a p

How urgent is CVE-2012-3408?

Priority 33/100. Public exploit reference

Related CVEs

CVE-2025-5459 HIGH 8.8 UPGRADE A user with specific node group editing permissions and a specially crafted class parameter could be used to e
CVE-2023-5309 MEDIUM 6.8 UPGRADE Versions of Puppet Enterprise prior to 2021.7.6 and 2023.5 contain a flaw which results in broken session mana
CVE-2023-5255 MEDIUM 4.4 DOWNGRADE DOWNGRADE For certificates that utilize the auto-renew feature in Puppet Server, a flaw exists which prevents the certif
CVE-2023-2530 CRITICAL 9.8 UPGRADE A privilege escalation allowing remote code execution was discovered in the orchestration service.
CVE-2023-1894 MEDIUM 5.3 DOWNGRADE DOWNGRADE A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validat

References

← Back to latest CVEs