National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-3872 Detail

Current 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."

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 2.6 LOW
Vector: (AV:N/AC:H/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 4.9


Access Vector (AV): Network
Access Complexity (AC): High
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://groups.google.com/group/puppet-announce/browse_thread/thread/e7edc3a71348f3e1 Patch
http://puppetlabs.com/blog/important-security-announcement-altnames-vulnerability/
http://www.securityfocus.com/bid/50356
http://www.ubuntu.com/usn/USN-1238-1
http://www.ubuntu.com/usn/USN-1238-2
https://exchange.xforce.ibmcloud.com/vulnerabilities/70970
https://puppet.com/security/cve/cve-2011-3872

Technical Details

Vulnerability Type (View All)

  • Improper Input Validation (CWE-20)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:puppet:puppet:2.6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.6.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.7.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.7.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet:2.7.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppetlabs:puppet:2.7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppetlabs:puppet:2.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:puppet:puppet_enterprise:1.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet_enterprise:1.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet_enterprise:1.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppet:puppet_enterprise:1.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppetlabs:puppet_enterprise_users:1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:puppetlabs:puppet_enterprise_users:1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

24 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-3872
NVD Published Date:
10/27/2011
NVD Last Modified:
07/11/2019