OpenshiftApplication · Redhat

CVE-2016-5409

HIGH · 7.5 CVSS v3.0 Published 2017-04-20
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges 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
Red Hat OpenShift Enterprise 2 does not include the HTTPOnly flag in a Set-Cookie header for the GEARID cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to the cookies.

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

Red Hat OpenShift Enterprise 2 fails to set the HTTPOnly flag on the GEARID cookie in its Set-Cookie header. Without this flag, the cookie value is accessible to JavaScript via document.cookie, enabling XSS-based cookie theft attacks that could expose sensitive information.

MitigationAdd the HttpOnly attribute to the Set-Cookie header when the GEARID cookie is created in the OpenShift application code.

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
OpenshiftApplication
Affected:= 2.0

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
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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. Identify OpenShift installation and version
    Check the installed OpenShift version using the CLI (oc version) or review system packages to confirm the version is 2.0
    Affected if OpenShift Enterprise version is exactly 2.0
  2. Locate GEARID cookie in use
    Capture HTTP traffic or review application configuration to confirm the GEARID cookie is being set by the OpenShift environment
    Affected if The GEARID cookie is present and used by the application
  3. Inspect Set-Cookie header for HttpOnly flag
    Capture a Set-Cookie response header from the OpenShift application (via browser DevTools, proxy, or curl -v) and inspect whether the HttpOnly attribute is included in the GEARID cookie definition
    Affected if The Set-Cookie header for GEARID does NOT contain the HttpOnly flag
  4. Verify cookie accessible via JavaScript
    Open browser console and run document.cookie to list all accessible cookies, then search for the GEARID cookie value in the output
    Affected if The GEARID cookie value appears in document.cookie output, confirming it is JavaScript-accessible

The environment is affected if OpenShift Enterprise 2.0 is in use and the GEARID cookie is set without the HttpOnly flag, allowing JavaScript access via document.cookie.

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

Add the HttpOnly attribute to the Set-Cookie header when the GEARID cookie is created in the OpenShift application code.

Fix this in Openshift Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
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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-2016-5409 in production — separate from our analysis above.

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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
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  • Version or environment caveats, and links to real fixes
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