Halo FirmwareOperating system · Elsight

CVE-2022-36784

CRITICAL · 9.8 CVSS v3.1 Published 2022-11-17
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
Elsight – Elsight Halo  Remote Code Execution (RCE) Elsight Halo web panel allows us to perform connection validation. through the POST request : /api/v1/nics/wifi/wlan0/ping we can abuse DESTINATION parameter and leverage it to remote code execution.

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

The Elsight Halo web panel contains a command injection vulnerability in the /api/v1/nics/wifi/wlan0/ping endpoint. The DESTINATION parameter passed via POST request is not properly sanitized before being used in a ping command, allowing an attacker to inject arbitrary OS commands and achieve remote code execution with the privileges of the web service.

MitigationRestrict network access to the Elsight Halo web panel to trusted IPs only until an official patch is available. Apply vendor-supplied patches immediately upon release and validate input sanitization in the ping functionality.

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
Halo FirmwareOperating system
Affected:all versions

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 if the system is Elsight Halo
    Access the web panel login page and look for 'Elsight Halo' or 'Halo' branding in the interface, or check the HTTP response headers for 'Halo' references. Alternatively, check your network documentation or device label for the Elsight Halo product name.
    Affected if The device is identified as an Elsight Halo product.
  2. Confirm the web panel service is running
    Attempt to access the web panel via HTTP or HTTPS on the device IP address (typically ports 80 or 443). Verify the service responds with a login page or API response.
    Affected if The Elsight Halo web panel is accessible over the network.
  3. Verify the vulnerable ping endpoint exists
    Send a POST request to /api/v1/nics/wifi/wlan0/ping with a DESTINATION parameter (even a benign one like 127.0.0.1). A response (even an error) indicates the endpoint is present and functional.
    Affected if The /api/v1/nics/wifi/wlan0/ping endpoint responds to requests.
  4. Determine if the web panel is exposed to untrusted networks
    Check firewall rules, ACLs, or network segmentation configurations to determine if the Elsight Halo web panel (ports 80/443) is accessible from networks outside your trusted internal network.
    Affected if The web panel is accessible from untrusted or external network segments.

You are affected if your Elsight Halo device has the web panel accessible and the /api/v1/nics/wifi/wlan0/ping endpoint is functional, regardless of firmware version.

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

Restrict network access to the Elsight Halo web panel to trusted IPs only until an official patch is available. Apply vendor-supplied patches immediately upon release and validate input sanitization in the ping functionality.

Fix this in Halo Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA3.0 h
16.0 hours of engineering $2,820
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Scan for this in your stack

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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-2022-36784 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
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