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CVE-2018-11751· NVD / CVE Program· CNA puppet

Previous versions of Puppet Agent didn't verify the peer in the SSL connection prior to downloading the CRL.

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.

MediumCVSS 5.4 · v3.1—No exploit Fix available
Published
Dec 16, 2019
Updated
Jun 16, 2026
EPSS
0.6% · 47th percentile
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Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

Affected systems

VendorProduct
puppetpuppet server

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • puppet puppet server6.0.0 and later · before 6.4.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (puppet). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a Puppet Agent, Puppet

    • Puppet Agent 6.x prior to 6.4.0, Puppet 6.x prior to 6.4.xaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Red Hat:satellite_capsule:6.8::el7ansible-collection-redhat-satellitebefore 0:1.3.0-1.el7sat0:1.3.0-1.el7sat
Red Hat:satellite_capsule:6.8::el7ansible-runnerbefore 0:1.4.6-1.el7ar0:1.4.6-1.el7ar
Red Hat:satellite_capsule:6.8::el7ansiblerole-foreman_scap_clientbefore 0:0.0.5-1.el7sat0:0.0.5-1.el7sat
Red Hat:satellite_capsule:6.8::el7ansiblerole-insights-clientbefore 0:1.7.1-1.el7sat0:1.7.1-1.el7sat
Red Hat:satellite_capsule:6.8::el7ansiblerole-satellite-receptor-installerbefore 0:0.6.13-1.el7sat0:0.6.13-1.el7sat
Red Hat:satellite_capsule:6.8::el7crane-selinuxbefore 0:3.4.0-1.el7sat0:3.4.0-1.el7sat
Red Hat:satellite_capsule:6.8::el7createrepo_cbefore 0:0.7.4-1.el7sat0:0.7.4-1.el7sat
Red Hat:satellite_capsule:6.8::el7createrepo_c-debuginfobefore 0:0.7.4-1.el7sat0:0.7.4-1.el7sat
Red Hat:satellite_capsule:6.8::el7createrepo_c-libsbefore 0:0.7.4-1.el7sat0:0.7.4-1.el7sat
Red Hat:satellite_capsule:6.8::el7foremanbefore 0:2.1.2.19-1.el7sat0:2.1.2.19-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-bootloaders-redhatbefore 0:202005201200-1.el7sat0:202005201200-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-bootloaders-redhat-tftpbootbefore 0:202005201200-1.el7sat0:202005201200-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-debugbefore 0:2.1.2.19-1.el7sat0:2.1.2.19-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-discovery-imagebefore 1:3.6.7-1.el7sat1:3.6.7-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-discovery-image-servicebefore 0:1.0.0-3.el7sat0:1.0.0-3.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-discovery-image-service-tuibefore 0:1.0.0-3.el7sat0:1.0.0-3.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-installerbefore 1:2.1.2.8-1.el7sat1:2.1.2.8-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-installer-katellobefore 1:2.1.2.8-1.el7sat1:2.1.2.8-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-proxybefore 0:2.1.2-2.el7sat0:2.1.2-2.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-proxy-contentbefore 0:3.16.0-1.el7sat0:3.16.0-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-proxy-journaldbefore 0:2.1.2-2.el7sat0:2.1.2-2.el7sat
Red Hat:satellite_capsule:6.8::el7futurebefore 0:0.16.0-11.el7sat0:0.16.0-11.el7sat
Red Hat:satellite_capsule:6.8::el7goferbefore 0:2.12.5-7.el7sat0:2.12.5-7.el7sat
Red Hat:satellite_capsule:6.8::el7hfsplus-toolsbefore 0:332.14-12.el70:332.14-12.el7

+96

Other highest-scoring records for the same primary product.

  • CVE-2014-7170Race condition in Puppet Server 0.2.0 allows local users to obtain sensitive information by accessing it in between package installation or
    7Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
red hat:ansible-collection-redhat-satellite0:1.3.0-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:ansible-runner0:1.4.6-1.el7ar · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:ansiblerole-foreman_scap_client0:0.0.5-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:ansiblerole-insights-client0:1.7.1-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:ansiblerole-satellite-receptor-installer0:0.6.13-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:crane-selinux0:3.4.0-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:createrepo_c0:0.7.4-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:createrepo_c-debuginfo0:0.7.4-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:createrepo_c-libs0:0.7.4-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:foreman0:2.1.2.19-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:foreman-bootloaders-redhat0:202005201200-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:foreman-bootloaders-redhat-tftpboot0:202005201200-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
low · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
Low

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

nvd-primary

Root cause

A certificate validation error is silently swallowed instead of terminating the connection. Often, code added for a test environment makes its way into production.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

kotlin
override fun checkServerTrusted(chain: Array<X509Certificate>, type: String) {  // Left empty for the test environment}

Fixed

kotlin
val client = OkHttpClient.Builder()  .certificatePinner(    CertificatePinner.Builder()      .add("api.sirius.example", "sha256/…")      .build()  ).build()

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records