CloudlinkApplication · Dell

CVE-2021-36312

CRITICAL · 9.1 CVSS v3.1 Published 2021-11-23
Fix available
A fix is available. Upgrade to 7.1.1 or later.
See remediation →
97/100
Remediation priority · Urgent
Remotely reachable 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
Dell EMC CloudLink 7.1 and all prior versions contain a Hard-coded Password Vulnerability. A remote high privileged attacker, with the knowledge of the hard-coded credentials, may potentially exploit this vulnerability to gain unauthorized access to the system.

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 · moderate confidence

Dell EMC CloudLink 7.1 and prior versions contain a hard-coded password (backdoor) embedded in the software. A remote attacker with high-level privileges and knowledge of these hard-coded credentials can exploit this vulnerability to gain unauthorized access to the system, potentially escalating their access or maintaining persistent presence.

MitigationRemove the hard-coded password from the codebase and implement proper authentication mechanisms. Apply any vendor-supplied patches when available and rotate credentials if exposure is suspected.

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
CloudlinkApplication
Affected:< 7.1.1

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
Network
Complexity
Low
Privileges
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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 installed Dell CloudLink version
    Access the CloudLink administrative interface or check system documentation to determine the currently installed version number
    Affected if The installed version is any release prior to 7.1.1 (versions 7.1 and earlier)
  2. Audit system user accounts
    Review all user accounts configured in CloudLink, including local users, service accounts, and any accounts with administrative or high-level privileges
    Affected if There are any unexpected, undocumented, or extra user accounts present beyond those explicitly created by administrators
  3. Examine authentication configuration
    Inspect authentication configuration files, scripts, or database entries related to user authentication and credential storage
    Affected if Any credentials are found stored in plaintext, embedded directly in code or scripts, or configured with default values that are not user-defined
  4. Review authentication logs for anomalous access
    Analyze CloudLink authentication and access logs for successful logins using credentials that cannot be traced to known, legitimate administrators
    Affected if Logs show successful authentications from accounts that were never created through the normal administrative provisioning process
  5. Check for persistent access mechanisms
    Inspect the system for any unauthorized scheduled tasks, services, or startup configurations that may indicate persistent access established via backdoor credentials
    Affected if Any undocumented scheduled tasks, services, or persistent mechanisms exist that were not created by the legitimate administration team

A system is affected if it runs Dell CloudLink version 7.1 or prior AND contains hardcoded credentials that could provide unauthorized high-privilege access to a remote attacker.

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.

dbcve · scoped
Upgrade available Upgrade to 7.1.1 or later
Fixed in 7.1.1
Interim mitigation

Remove the hard-coded password from the codebase and implement proper authentication mechanisms. Apply any vendor-supplied patches when available and rotate credentials if exposure is suspected.

Recommended fix High confidence

7.1.1

  1. Upgrade Dell EMC CloudLink to version 7.1.1 or later to remediate the hard-coded password vulnerability
  2. Follow Dell's standard upgrade procedure for CloudLink 7.1.1
  3. Verify the upgrade was successful and the hard-coded credentials have been replaced with secure, unique passwords

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Cloudlink Scoped from the published advisory
  • Consultation6.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
34.0 hours of engineering $6,000
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,600.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2021-36312 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2021-36312 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