CVE-2018-6513

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-06-11 · updated 2026-06-17
Weakness: CWE-426

Description

Puppet Enterprise 2016.4.x prior to 2016.4.12, Puppet Enterprise 2017.3.x prior to 2017.3.7, Puppet Enterprise 2018.1.x prior to 2018.1.1, Puppet Agent 1.10.x prior to 1.10.13, Puppet Agent 5.3.x prior to 5.3.7, and Puppet Agent 5.5.x prior to 5.5.2, were vulnerable to an attack where an unprivileged user on Windows agents could write custom facts that can escalate privileges on the next puppet run. This was possible through the loading of shared libraries from untrusted paths.

Affected products

Puppet Agent: from 1.10.0 before 1.10.13; from 5.3.0 before 5.3.7; from 5.5.0 before 5.5.2 — fixed in 1.10.13, 5.3.7, 5.5.2
Puppet Enterprise: from 2016.4.0 before 2016.4.12; from 2017.3.0 before 2017.3.7; from 2018.1.0 before 2018.1.1 — fixed in 2016.4.12, 2017.3.7, 2018.1.1

How to fix

Upgrade to a fixed version: Puppet Agent 1.10.13, 5.3.7, 5.5.2; Puppet Enterprise 2016.4.12, 2017.3.7, 2018.1.1. Check the vendor advisory for mitigations.

References

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