Improper Privilege Management
In previous versions of Puppet Agent it was possible to install a module with world writable permissions. Puppet Agent 5.3.4 and 1.10.10 included a fix to this vulnerability.
All versions before 4.10.10, all versions starting from 5.0.0 before 5.3.4
Upgrade to versions 4.10.10, 5.3.4 or above.