What is CVE-2018-11751?

CVE-2018-11751 is a medium-severity vulnerability in Puppet Puppet_server, classified under Improper Certificate Validation. CVSS score: 5.4/10. Published 2019-12-16.

How severe is CVE-2018-11751?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2018-11751 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Puppet Puppet_server

CVE-2018-11751

Previous versions of Puppet Agent didn't verify the peer in the SSL connection prior to downloading the CRL. This issue is resolved in Puppet Agent 6.4.0.

Vulnerability class: Improper Certificate Validation

EPSS: 0.006 (45.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Puppet Puppet_server
N/a Puppet Agent, — versions Puppet Agent 6.x prior to 6.4.0, Puppet 6.x prior to 6.4.x

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

security@puppet.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2018-11751?: CVE-2018-11751 is a medium-severity vulnerability in Puppet Puppet_server, classified under Improper Certificate Validation. CVSS score: 5.4/10. Published 2019-12-16.
How severe is CVE-2018-11751?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2018-11751 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.