CVE-2021-41295
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 · uneditedECOA BAS controller has a Cross-Site Request Forgery vulnerability, thus authenticated attacker can remotely place a forged request at a malicious web page and execute CRUD commands (GET, POST, PUT, DELETE) to perform arbitrary operations in 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 confidenceCross-Site Request Forgery vulnerability in ECOA BAS controller allows authenticated attackers to trick users into submitting malicious requests from a crafted web page, enabling execution of arbitrary CRUD operations (GET, POST, PUT, DELETE) on the building automation system.
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 dataall versionsall versionsall versionsCVSS 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
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 checksWork through these to decide whether this CVE applies to you.
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Identify the ECOA device modelAccess the device web interface or check the device documentation/label to confirm the exact model (Ecs Router Controller, Riskbuster, or Riskterminator) and firmware versionAffected if The device is any model of Ecs Router Controller, Riskbuster, or Riskterminator with a web interface
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Locate the web interface login and state-changing formsNavigate to the device web interface and identify forms or endpoints that perform CRUD operations (configuration changes, device control actions, user management)Affected if The web interface has interactive forms or API endpoints for configuration or control
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Inspect HTML forms for anti-CSRF tokensView the page source of state-changing forms (POST/PUT/DELETE endpoints) and search for hidden input fields containing tokens, or check if the form submission includes a token parameter in the requestAffected if Forms submit requests without any hidden CSRF token parameter present in the HTML
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Check session cookie SameSite attributeUsing browser developer tools, inspect the session cookie (usually named something like JSESSIONID, PHPSESSID, or a custom session identifier) and verify if the SameSite attribute is set to 'Strict' or 'Lax', or not present at allAffected if The session cookie has no SameSite attribute or has SameSite set to 'None' without Secure flag
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Verify Origin/Referer header validationAttempt a cross-origin request to a state-changing endpoint (e.g., using curl with arbitrary Origin header) and observe if the server rejects it with an error or accepts it without validationAffected if The server accepts requests with arbitrary Origin/Referer headers without validation
The environment is affected if any ECOA Ecs Router Controller, Riskbuster, or Riskterminator device has a web interface where state-changing operations lack anti-CSRF tokens, have session cookies without proper SameSite attributes, or do not validate Origin/Referer headers.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement anti-CSRF tokens (synchronizer token pattern) on all state-changing operations and validate Origin/Referer HTTP headers; alternatively configure SameSite attribute on session cookies to prevent cross-origin request forgery.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-41295 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-41295 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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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