CVE-2011-3872

puppet: MITM by the x509v3 certificate signing

Published Oct 27, 2011 CVSS 2.0 · 2.6 Low EPSS 2.5% KEV · Not listed
Description
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."

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-2352-1 puppet security update
EUVD EUVD EUVD-2011-3826 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."
Ubuntu USN Ubuntu USN USN-1238-1 Puppet vulnerability
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2024, 11:53 PM
Reserved
Sep 29, 2011, 12:00 AM
Status
Modified
Published
Oct 27, 2011, 8:55 PM
Modified
Jun 16, 2026, 11:34 PM
Severity
Important
Public date
Oct 24, 2011, 12:00 AM