Puppet 2.6.0 through 2.6.3 does not properly restrict access to node resources, which allows remote authenticated Puppet nodes to read or modify the resources of other nodes via unspecified vectors.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-0528
• http://www.openwall.com/lists/oss-security/2011/01/27/6
• http://www.openwall.com/lists/oss-security/2011/01/31/5
• http://www.ubuntu.com/usn/USN-1365-1
• puppetlabs/puppet@eee1a9c
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puppet/CVE-2011-0528.yml
• http://www.mail-archive.com/[email protected]/msg16429.html