Skip to content
Noroxi
NVD / CVE Program· CNA puppet

CVE-2020-7943: Puppet Server and PuppetDB provide useful performance and debugging information via their metrics API endpoints.

Noroxi assessment

Priority: Monitor (action score 32/100)

  • A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
  • Public proof-of-concept code exists (Exploit-DB / GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 7.6% (FIRST EPSS); higher than 94.5% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: puppetdb (Debian:12) 7.11.2-2.

Low priority for now. Upgrade to puppetdb (Debian:12) 7.11.2-2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Puppet Server and PuppetDB provide useful performance and debugging information via their metrics API endpoints. For PuppetDB this may contain things like hostnames. Puppet Server reports resource names and titles for defined types (which may contain sensitive information) as well as function names and class names. Previously, these endpoints were open to the local network. PE 2018.1.13 & 2019.5.0, Puppet Server 6.9.2 & 5.3.12, and PuppetDB 6.9.1 & 5.2.13 disable trapperkeeper-metrics /v1 metrics API and only allows /v2 access on localhost by default. This affects software versions: Puppet Enterprise 2018.1.x stream prior to 2018.1.13 Puppet Enterprise prior to 2019.5.0 Puppet Server prior to 6.9.2 Puppet Server prior to 5.3.12 PuppetDB prior to 6.9.1 PuppetDB prior to 5.2.13 Resolved in: Puppet Enterprise 2018.1.13 Puppet Enterprise 2019.5.0 Puppet Server 6.9.2 Puppet Server 5.3.12 PuppetDB 6.9.1 PuppetDB 5.2.13

HighCVSS 7.5 · v3.1—Proof of concept Fix available
Published
Mar 11, 2020
Updated
Jun 16, 2026
EPSS
7.6% · 94th percentile

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
2 / 30 · 7.6%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2020-7943

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for puppet records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
puppetpuppet enterprise
puppetpuppet server
puppetpuppetdb

Affected versions

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

  • puppet puppet enterprise2018.1.0 and later · before 2018.1.15
  • puppet puppet enterprise2019.0 and later · before 2019.7.0
  • puppet puppet serverbefore 5.3.13
  • puppet puppet server6.0.0 and later · before 6.11.1
  • puppet puppetdbbefore 5.2.15
  • puppet puppetdb6.0.0 and later · before 6.10.1

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 Enterprise

    • prior to 2019.5.0affected

  • n/a Puppet Enterprise 2018.1.x stream

    • prior to 2018.1.13affected

  • n/a Puppet Server

    • prior to 6.9.2, prior to 5.3.12affected

  • n/a PuppetDB

    • prior to 6.9.1, prior to 5.2.13affected

  • n/a Resolved in Puppet Enterprise, Puppet Server, PuppetDB

    • Puppet Enterprise 2018.1.13 and 2019.5.0, Puppet Server 6.9.2 and 5.3.12, PuppetDB 6.9.1 and 5.2.13affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12puppetdbbefore 7.11.2-27.11.2-2

Same product

puppet: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-5309Broken Session Management in Puppet Enterprise
    39Monitor
  • CVE-2023-2530A privilege escalation allowing remote code execution was discovered in the orchestration service.
    39Monitor
  • CVE-2019-10694The express install, which is the suggested way to install Puppet Enterprise, gives the user a URL at the end of the install to set the admi
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2013-4968Dec 11, 2019 · Puppet Enterprise before 3.0.1 allows remote attackers to (1) conduct clickjacking attacks via unspecified vectors related to the console, a
    24Monitor
  • ← EarlierCVE-2015-5686Feb 26, 2020 · Parts of the Puppet Enterprise Console 3.x were found to be susceptible to clickjacking and CSRF (Cross-Site Request Forgery) attacks.
    35Monitor
  • Later →CVE-2021-27019Aug 30, 2021 · PuppetDB logging included potentially sensitive system information.
    17Monitor

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
debian:puppetdb7.11.2-2 · Debian:12Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Nuclei detection template ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Nuclei detection templateNuclei template CVE-2020-7943 —
Nuclei detection templateNuclei template puppetdb-dashboard-unauth —

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.

Credits

All researchers

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

  • Anyone who can reach it over the internet 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
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-276 · Incorrect Default Permissions

CVSS vector

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

nvd-primary

Attack context

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

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