Debian LinuxOperating system · Debian

CVE-2017-4966

HIGH · 7.8 CVSS v3.1 Published 2017-06-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

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
An issue was discovered in these Pivotal RabbitMQ versions: all 3.4.x versions, all 3.5.x versions, and 3.6.x versions prior to 3.6.9; and these RabbitMQ for PCF versions: all 1.5.x versions, 1.6.x versions prior to 1.6.18, and 1.7.x versions prior to 1.7.15. RabbitMQ management UI stores signed-in user credentials in a browser's local storage without expiration, making it possible to retrieve them using a chained attack.

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 RabbitMQ management UI stores user authentication credentials in the browser's local storage without any expiration time. This allows credentials to persist indefinitely in the browser, enabling an attacker who can execute a chained attack (such as XSS) to retrieve the stored credentials from local storage.

MitigationUpgrade to RabbitMQ version 3.6.9 or later (or 3.7+/3.8+), and for PCF deployments upgrade to RabbitMQ for PCF 1.6.18+/1.7.15+. Consider using session-based storage instead of localStorage for credentials.

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
Debian LinuxOperating system
Affected:= 9.0
Rabbitmq ServerApplication
Affected:= 3.4.0= 3.4.1= 3.4.2= 3.4.3= 3.4.4= 3.5.0= 3.5.1= 3.5.2= 3.5.3= 3.5.6= 3.6.7
RabbitmqApplication
Affected:= 3.5.4= 3.5.5= 3.5.7= 3.6.0= 3.6.1= 3.6.2= 3.6.3= 3.6.4= 3.6.5= 3.6.6= 1.5.0= 1.5.1

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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. Identify RabbitMQ installation and version
    Run 'rabbitmqctl status' or 'rabbitmqctl version' to determine the installed RabbitMQ version
    Affected if The reported version matches any of the affected versions listed (3.4.0-3.4.4, 3.5.0-3.5.7, 3.6.0-3.6.7, 1.5.0-1.5.1)
  2. Verify management UI plugin is enabled
    Run 'rabbitmq-plugins list' or check rabbitmq management plugin configuration to see if the management plugin is enabled
    Affected if The rabbitmq_management plugin is enabled and the version is within the affected range
  3. Confirm management UI is accessible
    Check if port 15672 (default management UI port) is open and listening by running 'netstat -tlnp | grep 15672' or checking firewall rules
    Affected if The management UI port is accessible and the RabbitMQ version is affected
  4. Check browser local storage behavior
    If you have access to a browser that has logged into the RabbitMQ management UI, open browser developer tools (F12), go to Application tab, select Local Storage, and look for keys containing 'rabbitmq' or authentication tokens
    Affected if Credentials or auth tokens are found stored in localStorage without expiration for an affected version

You are affected if RabbitMQ version is within 3.4.0-3.4.4, 3.5.0-3.5.7, 3.6.0-3.6.7, or 1.5.0-1.5.1 AND the management UI plugin is enabled and accessible.

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

Upgrade to RabbitMQ version 3.6.9 or later (or 3.7+/3.8+), and for PCF deployments upgrade to RabbitMQ for PCF 1.6.18+/1.7.15+. Consider using session-based storage instead of localStorage for credentials.

Fix this in Debian Linux Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,380
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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-2017-4966 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