Puppet Communications Protocol (PCP) Broker String Validation Vulnerability

  • Posted October 20, 2016

  • Assessed Risk Level: Critical

    Note: Considered alone this vulnerability is Low Risk, but in combination with the PXP Agent vulnerability this becomes Critical.
  • CVSS 3 Base Score: 3.8

Prior to Puppet Enterprise 2016.4.0 the PCP broker failed to properly validate message types, which could allow a compromised Puppet Agent hosts to trigger Puppet runs on other agents.

Reported by NCC Group.


Affected Software Versions:

  • Puppet Enterprise 2015.3.x
  • Puppet Enterprise 2016.x prior to 2016.4.0

Resolved in:

  • Puppet Enterprise 2016.4.0
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