Missing AuthenticationWeakness · CWE-306

CVE-2024-6981

CRITICAL · 9.8 CVSS v3.1 Published 2024-09-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
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
OMNTEC Proteus Tank Monitoring OEL8000III Series could allow an attacker to perform administrative actions without proper authentication.

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 OMNTEC Proteus Tank Monitoring OEL8000III Series devices contain an authentication bypass vulnerability that allows attackers to perform administrative actions without proper authentication. This is a critical flaw enabling unauthenticated remote attackers to gain full administrative control over the tank monitoring system.

MitigationApply the vendor-supplied firmware update or patch when available. As an immediate compensating control, isolate the device behind a firewall with restricted access controls and monitor for unauthorized administrative access attempts.

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

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
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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 the device model
    Access the device web interface or check the device label/serial plate for 'OEL8000III Series' or 'Proteus' markings. Alternatively, query the device via SNMP or check network discovery scans for OMNTEC OEL8000III identifiers.
    Affected if The device is confirmed to be an OMNTEC Proteus OEL8000III Series tank monitoring unit.
  2. Check the firmware version
    Log into the device admin interface and navigate to the System Information or About page to view the installed firmware version. If the web interface is inaccessible, check via SNMP OID or serial console if available.
    Affected if The firmware version is older than the vendor patched version (contact OMNTEC for the specific fixed release).
  3. Verify admin interface authentication enforcement
    Attempt to access administrative functions (such as configuration pages, user management, or device settings) directly via URL without providing credentials. Observe whether the system grants access or redirects to a login page.
    Affected if Administrative pages load without requiring any authentication credentials.
  4. Assess network exposure
    Determine if the device management interface (typically HTTP/HTTPS on ports 80/443 or custom ports) is directly accessible from untrusted networks. Review firewall rules and external-facing IP scans.
    Affected if The device admin interface is reachable from the internet or untrusted network segments without firewall filtering.
  5. Review access logs for unauthorized admin activity
    Examine device logs, firewall logs, or SIEM for successful administrative actions (configuration changes, user additions, firmware uploads) originating from unexpected IP addresses or occurring without prior login events.
    Affected if Administrative actions appear in logs without corresponding authentication events.

If the device is an OMNTEC Proteus OEL8000III Series and administrative functions are accessible without authentication, the environment is affected by CVE-2024-6981.

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

Apply the vendor-supplied firmware update or patch when available. As an immediate compensating control, isolate the device behind a firewall with restricted access controls and monitor for unauthorized administrative access attempts.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-6981 — 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-2024-6981 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
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