CVE-2020-9477
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 · uneditedAn issue was discovered on HUMAX HGA12R-02 BRGCAA 1.1.53 devices. A vulnerability in the authentication functionality in the web-based interface could allow an unauthenticated remote attacker to capture packets at the time of authentication and gain access to the cleartext password. An attacker could use this access to create a new user account or control the device.
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 confidenceThe HUMAX HGA12R-02 BRGCAA 1.1.53 devices have a vulnerability in the web interface authentication that allows unauthenticated remote attackers to capture network packets during the authentication process and obtain the cleartext password. This enables attackers to create new accounts or gain full device control.
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= brgcaa1.1.53CVSS 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.
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Confirm device model and firmware versionAccess the device web interface or check the device administrative panel for the exact firmware version. Look for 'brgcaa1.1.53' or navigate to the firmware/version information section in Settings > About or similar.Affected if The firmware version displayed is exactly brgcaa1.1.53 (this specific version is affected)
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Verify web interface network accessibilityDetermine if the device web interface is accessible from network segments outside the local management network. Check router/firewall rules or attempt to access the device IP from an untrusted network.Affected if The web interface is exposed to untrusted networks (the vulnerability allows remote unauthenticated access)
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Review for unauthorized admin accountsLog into the device web interface and navigate to the user account management section. Check for any unexpected or unknown administrator accounts that were not created by you.Affected if There are administrator accounts present that you did not create, indicating potential exploitation
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Inspect network logs for authentication capture attemptsReview network monitoring logs, firewall logs, or IDS alerts for signs of packet capture or man-in-the-middle attempts targeting the device authentication process.
You are affected if your device is a HUMAX HGA12R-02 running firmware version brgcaa1.1.53 AND the web interface is accessible from untrusted networks, or if you discover unauthorized admin accounts on the device.
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 dataIsolate the device on a restricted network segment with firewall rules limiting access to trusted sources only, change all credentials immediately, and contact HUMAX for firmware updates. If no patch is available, consider device replacement.
- Consultation6.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-9477 — 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-2020-9477 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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