Improper input validation in Puppet
CVE-2011-3872
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."
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.025 (82.7th percentile) — read the EPSS interpretation.
Affected products
- Puppet — versions 2.6.0, 2.6.1, 2.6.2
- Puppet Puppet_enterprise — versions 1.2.0, 1.2.1, 1.2.2
- Puppetlabs Puppet — versions 2.7.0, 2.7.1
- Puppetlabs Puppet_enterprise_users — versions 1.0, 1.1
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (vdb-entry, x_refsource_XF)
- cve@mitre.org (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_SECUNIA, third-party-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch)
- cve@mitre.org (vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_SECUNIA, third-party-advisory)
Frequently asked questions
- What is CVE-2011-3872?
- CVE-2011-3872 is a vulnerability in Puppet, classified under Improper Input Validation. Published 2011-10-27.
- Is CVE-2011-3872 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.