VULNERABILITY INTELLIGENCE

CVE-2011-3872

CVSS score2.6 LOW
EPSS probability2.50%
CISA KEVNot currently listed
Published2011-10-27
Last modified2026-06-16
CVSS vectorAV:N/AC:H/Au:N/C:N/I:P/A:N

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."

Weakness classification

  • CWE-20: Improper Input Validation

Primary references