CVE-2021-37912
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 · uneditedThe HGiga OAKlouds mobile portal does not filter special characters of the Ethernet number parameter of the network interface card setting page. Remote attackers can use this vulnerability to perform command injection and execute arbitrary commands in the system without logging in.
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 confidenceHGiga OAKlouds mobile portal contains a command injection vulnerability in the network interface card settings page. The Ethernet number parameter fails to filter special characters, allowing remote unauthenticated attackers to inject arbitrary system commands through this input field.
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>= 2.0, <= 2.0-2>= 3.0, <= 3.0-2CVSS 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 checksWork through these to decide whether this CVE applies to you.
-
Confirm HGiga OAKlouds Portal installationIdentify the installed web application by checking the application banner, login page, or product identification headers. Look for 'OAKlouds' or 'HGiga' branding in the application interface or HTTP response headers.Affected if The application is not HGiga OAKlouds Portal, then this CVE does not apply.
-
Check installed version against affected rangesLocate the version information for the OAKlouds Portal installation. This may be found in the admin panel, about page, version file, or application footer. Compare your version to: 2.0 through 2.0-2, or 3.0 through 3.0-2.Affected if Your installed version falls within 2.0 to 2.0-2 or 3.0 to 3.0-2, then the version is vulnerable.
-
Verify network interface card settings functionality existsLocate the network interface card settings page in the OAKlouds Portal admin interface. This is typically found under network configuration, interface settings, or NIC management sections.Affected if This settings page does not exist or is not accessible, the specific command injection vector may not be present.
-
Inspect Ethernet number parameter handlingExamine the network interface card settings page for the Ethernet number input field. Determine if this parameter accepts user input and if it is used in any system command execution context. Review any accessible API endpoints or backend processing associated with this field.Affected if The Ethernet number parameter accepts input without strict validation and is used in system command execution, then the command injection vulnerability is present.
You are affected if HGiga OAKlouds Portal version 2.0-2.0-2 or 3.0-3.0-2 is installed AND the network interface card settings page with the vulnerable Ethernet number parameter is accessible and processes input unsafely.
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 strict input validation with allowlist filtering on the Ethernet number parameter to reject special characters; replace any unsafe command execution logic with parameterized calls or safer alternatives; validate all inputs server-side before use in system operations.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 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 $4,512.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-37912 — 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-2021-37912 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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