NomadApplication · Jenkins

CVE-2019-1003092

MEDIUM · 6.5 CVSS v3.0 Published 2019-04-04
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A cross-site request forgery vulnerability in Jenkins Nomad Plugin in the NomadCloud.DescriptorImpl#doTestConnection form validation method allows attackers to initiate a connection to an attacker-specified server.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The Jenkins Nomad Plugin has a CSRF vulnerability in the NomadCloud.DescriptorImpl#doTestConnection form validation method. An attacker can trick an authenticated Jenkins user into unknowingly initiating a connection to an attacker-controlled server by leveraging the lack of CSRF protection on this form validation endpoint.

MitigationEnable Jenkins built-in CSRF protection (crumb validation) and update the Nomad plugin to the latest version that includes proper CSRF token validation in the doTestConnection method.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
NomadApplication
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Jenkins Nomad plugin is installed
    Navigate to Jenkins > Manage Jenkins > Manage Plugins > Installed tab and search for 'Nomad' or check the plugin directory $JENKINS_HOME/plugins for nomad plugin files
    Affected if The Nomad plugin is installed (all versions are affected)
  2. Check if Jenkins CSRF protection is enabled
    Navigate to Jenkins > Manage Jenkins > Configure Global Security > CSRF Protection section. Verify if 'Enable proxy compatibility' or default 'crumb' validation is enabled
    Affected if CSRF protection (crumb validation) is disabled or not configured in Jenkins global security settings
  3. Inspect form validation endpoint configuration
    Examine the Jenkins CLI or API response when calling the doTestConnection endpoint at /descriptorByName/org.jenkinsci.plugins.nomad.NomadCloud/testConnection without providing a validcrumb token
    Affected if The endpoint accepts requests without requiring a valid CSRF crumb token (test with a simple curl request lacking the crumb)
  4. Verify authentication and session requirements
    Review Jenkins logs and network traffic when the form validation endpoint is accessed. Check whether an authenticated session and validcrumb are both required
    Affected if The doTestConnection endpoint can be triggered without both an authenticated session and a valid CSRF token

A user is affected if the Jenkins Nomad plugin is installed AND Jenkins CSRF protection (crumb validation) is disabled or the doTestConnection endpoint can be accessed without requiring a valid CSRF token.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Enable Jenkins built-in CSRF protection (crumb validation) and update the Nomad plugin to the latest version that includes proper CSRF token validation in the doTestConnection method.

Fix this in Nomad Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-1003092 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data