OpenshiftApplication · Redhat

CVE-2020-1761

MEDIUM · 6.1 CVSS v3.1 Published 2021-05-27
Fix available
A fix is available. Upgrade to 4.0 or later.
See remediation →
68/100
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 flaw was found in the OpenShift web console, where the access token is stored in the browser's local storage. An attacker can use this flaw to get the access token via physical access, or an XSS attack on the victim's browser. This flaw affects openshift/console versions before openshift/console-4.

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 OpenShift web console versions before 4 store access tokens in browser localStorage, making them accessible to attackers who can exploit XSS vulnerabilities or gain physical access to the victim's browser. This allows token theft and subsequent authentication impersonation.

MitigationUpgrade to openshift/console version 4 or later, which addresses the insecure token storage. Consider implementing token storage via httpOnly cookies or sessionStorage as a defense-in-depth measure.

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:< 4.0

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
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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. Check OpenShift cluster version
    Run 'oc get clusterversion' or 'oc version' to retrieve the installed OpenShift version
    Affected if The cluster version shows a version lower than 4.0 (e.g., 3.x)
  2. Identify console pod version
    Run 'oc get pods -n openshift-console -o jsonpath="{.items[*].spec.containers[*].image}"' to retrieve the console container image
    Affected if The image tag or version indicates a release before 4.0
  3. Check console route configuration
    Run 'oc get route console -n openshift-console -o jsonpath="{.spec.to.name}"' to confirm the console service is running
    Affected if The console is accessible and the underlying version is below 4.0
  4. Inspect browser storage (optional context)
    If you have access to the browser dev tools on a console session, open Application > Local Storage and inspect for token entries under the console domain
    Affected if Access tokens are stored in localStorage (tokens visible in plain text)

You are affected if your OpenShift cluster version is before 4.0, as the web console in those versions stores access tokens in browser localStorage.

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
Upgrade available Upgrade to 4.0 or later
Fixed in 4.0
Interim mitigation

Upgrade to openshift/console version 4 or later, which addresses the insecure token storage. Consider implementing token storage via httpOnly cookies or sessionStorage as a defense-in-depth measure.

Fix this in Openshift Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,880
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.

Scan for this in your stack

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dbcve dependency scanner

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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-2020-1761 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