CVE-2011-3872

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Summary

CVECVE-2011-3872
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-10-27 20:55:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionPuppet 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."

Risk And Classification

Primary CVSS: v2.0 2.6 from [email protected]

AV:N/AC:H/Au:N/C:N/I:P/A:N

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
High
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:H/Au:N/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Puppet Puppet 2.6.0 All All All
Application Puppet Puppet 2.6.1 All All All
Application Puppet Puppet 2.6.10 All All All
Application Puppet Puppet 2.6.11 All All All
Application Puppet Puppet 2.6.2 All All All
Application Puppet Puppet 2.6.3 All All All
Application Puppet Puppet 2.6.4 All All All
Application Puppet Puppet 2.6.5 All All All
Application Puppet Puppet 2.6.6 All All All
Application Puppet Puppet 2.6.7 All All All
Application Puppet Puppet 2.6.8 All All All
Application Puppet Puppet 2.6.9 All All All
Application Puppet Puppet 2.7.2 All All All
Application Puppet Puppet 2.7.3 All All All
Application Puppet Puppet 2.7.4 All All All
Application Puppet Puppet 2.7.5 All All All
Application Puppet Puppet Enterprise 1.2.0 All All All
Application Puppet Puppet Enterprise 1.2.1 All All All
Application Puppet Puppet Enterprise 1.2.2 All All All
Application Puppet Puppet Enterprise 1.2.3 All All All
Application Puppetlabs Puppet 2.7.0 All All All
Application Puppetlabs Puppet 2.7.1 All All All
Application Puppetlabs Puppet Enterprise Users 1.0 All All All
Application Puppetlabs Puppet Enterprise Users 1.1 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Security Advisory SA46964 - Fedora update for puppet - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Security Advisory SA46578 - Ubuntu update for puppet - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
CVE-2011-3872 | Puppet af854a3a-2127-422b-91ae-364da2661108 puppet.com
Important Security Announcement: AltNames Vulnerability | Puppet Labs af854a3a-2127-422b-91ae-364da2661108 puppetlabs.com
Google Groups af854a3a-2127-422b-91ae-364da2661108 groups.google.com Patch
USN-1238-2: Puppet regression | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Security Advisory SA46934 - Debian update for puppet - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
USN-1238-1: Puppet vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Puppet 'certdnsnames' Certificate Validation Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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