Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-3872

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
27/10/2011
Last modified:
11/04/2025

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."

Impact

Vector 2.0
AV:N/AC:H/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 2.60 LOW
Vector: AV:N/AC:H/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
2.60
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:puppet:puppet:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.1:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.3:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.4:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.5:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.6:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.7:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.8:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.9:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.10:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.6.11:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.2:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.3:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.4:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools