CVE-2011-3872
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."
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| bullseye | Fixed | 2.7.6-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| puppet | puppet | 2.6.0 | |
| puppet | puppet | 2.6.1 | |
| puppet | puppet | 2.6.2 | |
| puppet | puppet | 2.6.3 | |
| puppet | puppet | 2.6.4 | |
| puppet | puppet | 2.6.5 | |
| puppet | puppet | 2.6.6 | |
| puppet | puppet | 2.6.7 | |
| puppet | puppet | 2.6.8 | |
| puppet | puppet | 2.6.9 | |
| puppet | puppet | 2.6.10 | |
| puppet | puppet | 2.6.11 | |
| puppet | puppet | 2.7.2 | |
| puppet | puppet | 2.7.3 | |
| puppet | puppet | 2.7.4 | |
| puppet | puppet | 2.7.5 | |
| puppetlabs | puppet | 2.7.0 | |
| puppetlabs | puppet | 2.7.1 | |
| puppet | puppet_enterprise | 1.2.0 | |
| puppet | puppet_enterprise | 1.2.1 | |
| puppet | puppet_enterprise | 1.2.2 | |
| puppet | puppet_enterprise | 1.2.3 | |
| puppetlabs | puppet_enterprise_users | 1.0 | |
| puppetlabs | puppet_enterprise_users | 1.1 | |
References
- http://groups.google.com/group/puppet-announce/browse_thread/thread/e7edc3a71348f3e1
- http://puppetlabs.com/blog/important-security-announcement-altnames-vulnerability/
- http://secunia.com/advisories/46550
- http://secunia.com/advisories/46578
- http://secunia.com/advisories/46934
- http://secunia.com/advisories/46964
- 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
- https://security-tracker.debian.org/tracker/CVE-2011-3872
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.