What’s Vulnerable › Vulnerabilities

CVE-2012-3867

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2012-08-06 · updated 2026-06-16
• Weakness: CWE-264

Description

lib/puppet/ssl/certificate_authority.rb in Puppet before 2.6.17 and 2.7.x before 2.7.18, and Puppet Enterprise before 2.5.2, does not properly restrict the characters in the Common Name field of a Certificate Signing Request (CSR), which makes it easier for user-assisted remote attackers to trick administrators into signing a crafted agent certificate via ANSI control sequences.

Affected products

• Canonical Ubuntu Linux: 10.04, 11.04, 11.10, 12.04
• Debian Linux: 6.0
• Opensuse: 11.4, 12.1
• Puppet Agent: 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5 (+25)
• Puppet Enterprise: through 2.5.1
• Puppetlabs Puppet: through 2.6.16; 2.7.0, 2.7.1
• SUSE Linux Enterprise Server 15 SP1: 11-sp1, 11-sp2
• SUSE Linux Enterprise Server: 11-sp1, 11-sp2

References

• http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00006.html
• http://lists.opensuse.org/opensuse-updates/2012-07/msg00036.html
• http://puppetlabs.com/security/cve/cve-2012-3867/
• http://secunia.com/advisories/50014
• http://www.debian.org/security/2012/dsa-2511
• http://www.ubuntu.com/usn/USN-1506-1
• https://bugzilla.redhat.com/show_bug.cgi?id=839158
• https://github.com/puppetlabs/puppet/commit/dfedaa5fa841ccf335245a748b347b7c7c236640
• https://github.com/puppetlabs/puppet/commit/f3419620b42080dad3b0be14470b20a972f13c50
• http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00006.html
• http://lists.opensuse.org/opensuse-updates/2012-07/msg00036.html
• http://puppetlabs.com/security/cve/cve-2012-3867/

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