CVE-2011-3872 Security feature bypass in n/a

What is CVE-2011-3872?

CVE-2011-3872 is a low-severity vulnerability in Puppet Puppet Enterprise, published on 27 Oct 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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: CWE-20

Which versions are affected by CVE-2011-3872?

It affects 4 products.

Products include Puppet Puppet, Puppet Puppet Enterprise, Puppetlabs Puppet, Puppetlabs Puppet Enterprise Users.

How do I fix CVE-2011-3872?

Upgrade to a fixed version.

Is CVE-2011-3872 being exploited?

There is no known exploitation of CVE-2011-3872 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in Puppet Puppet Enterprise

• CVE-2016-2785 Puppet Improper Access Control Critical 9.8
• CVE-2021-27021 SQL injection in Puppet DB High 8.8
• CVE-2018-6513 Privilege escalation in Puppet Enterprise and Puppet Agent High 8.8
• CVE-2018-6514 Privilege escalation in Puppet Agent High 7.8
• CVE-2018-6515 Code injection in Puppet Agent High 7.8

All Puppet Puppet Enterprise vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2011-3872, DSA-2352-1, GHSA-494g-9grq-m629.