MEDIUM

GHSA-q44r-f2hm-v76v

Pupper does not properly restrict characters in Common Name field of Certificate Signing Request

Quick fix

GHSA-q44r-f2hm-v76v — puppet: upgrade to the fixed version with the command below.

bundle update puppet

Details

`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.

Are you affected?

Enter the version of the package you're using.

Affected packages

RubyGems/puppet

Introduced in: 0Fixed in: 2.6.17

Fixbundle update puppet

RubyGems/puppet

Introduced in: 2.7.0Fixed in: 2.7.18

Fixbundle update puppet

References

https://nvd.nist.gov/vuln/detail/CVE-2012-3867[ADVISORY]
https://github.com/puppetlabs/puppet/commit/dfedaa5fa841ccf335245a748b347b7c7c236640[WEB]
https://github.com/puppetlabs/puppet/commit/f3419620b42080dad3b0be14470b20a972f13c50[WEB]
https://bugzilla.redhat.com/show_bug.cgi?id=839158[WEB]
https://github.com/puppetlabs/puppet[PACKAGE]
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puppet/CVE-2012-3867.yml[WEB]
https://www.puppet.com/security/cve/cve-2012-3867-insufficient-input-validation[WEB]
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00006.html[WEB]
http://lists.opensuse.org/opensuse-updates/2012-07/msg00036.html[WEB]
http://puppetlabs.com/security/cve/cve-2012-3867[WEB]
http://www.debian.org/security/2012/dsa-2511[WEB]
http://www.ubuntu.com/usn/USN-1506-1[WEB]