CVE-2011-3872: n/a vulnerability

CVE-2011-3872: 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 befor...

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."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 23:53 UTC (UTC+00:00)

Security readout for executives and security teams

This older Puppet flaw could let an attacker on the network impersonate a Puppet master to certain agents. The issue affects legacy Puppet and Puppet Enterprise Users versions when agent certificates are signed with inappropriate alternate DNS names. It matters most where obsolete Puppet versions still manage servers or infrastructure configuration. Exposure is likely limited to legacy Puppet 2.6.x before 2.6.12, 2.7.x before 2.7.6, and Puppet Enterprise Users 1.0 through 1.2 before 1.2.4. Risk depends on agents using alternate DNS names for the Puppet master. Treat this as a high-priority legacy-infrastructure issue, not a broad modern emergency. If affected Puppet versions remain in production, compromise could undermine configuration management trust and impact many managed systems. Mitigation focus: Upgrade Puppet 2.6.x to 2.6.12 or later.; Upgrade Puppet 2.7.x to 2.7.6 or later.; Upgrade Puppet Enterprise Users to 1.2.4 or later..

Prepared: Jun 27, 2026, 17:48 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2011-3872 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 27, 2011, 20:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
puppet-x509-spoofing(70970)CVE reference · vdb-entry, x_refsource_XF
https://puppet.com/security/cve/cve-2011-3872CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.