CVE-2022-30561
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 · uneditedWhen an attacker uses a man-in-the-middle attack to sniff the request packets with success logging in, the attacker could log in to the device by replaying the user's login packet.
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 device's login mechanism is vulnerable to replay attacks. Since authentication relies solely on credentials within the login packet without session tokens, nonces, or other replay-prevention mechanisms, an attacker who intercepts a valid login packet via MITM can reuse it to authenticate as the victim.
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< 2022-04< 2022-04< 2022-04< 2022-04< 2022-04< 2022-04< 2022-04< 2022-04CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
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 device modelCheck the device label or log into the web interface and navigate to System Information or Device Info to confirm the exact model number (e.g., Hdbw2431e S S2, Hdbw2831e S S2, etc.)Affected if The model matches one of the listed affected models: Hdbw2431e S S2, Hdbw2831e S S2, Hdbw2230e S S2, Hdbw2831r Zs S2, Hdbw2831r Zas S2, Hdbw2531r Zs S2, Hdbw2531r Zas S2, or Hdbw2531e S S2
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Check the firmware versionIn the device web interface, go to System > System Info or Maintenance > Version to view the firmware build dateAffected if The firmware version or build date is before April 2022 (e.g., a date in March 2022 or earlier, or a version number lower than the April 2022 release)
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Verify login transport encryptionCheck if the device web interface is accessible over HTTP (http://) versus HTTPS (https://). Inspect the browser address bar and try accessing the login page via HTTPAffected if The login page is accessible over unencrypted HTTP or HTTPS is not enforced, allowing an attacker to intercept the login packet
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Confirm network accessibilityDetermine if the device web interface is exposed to untrusted networks (e.g., directly to the internet, over VPN, or on a shared network segment)Affected if The device is accessible from a network where a man-in-the-middle attacker could intercept traffic
You are affected if your device is one of the listed models, runs firmware dated before April 2022, and the login interface is accessible over an unencrypted channel or from a network where traffic interception is possible.
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.
dbcve · scoped2022-04
Implement cryptographic session tokens or one-time nonces for each login attempt, and enforce TLS/HTTPS to prevent packet interception. Consider adding device fingerprinting or additional factors to detect replayed requests.
Latest available Dahua firmware dated 2022-04 or later for your specific IPC model
- 1. Identify the exact model number of your Dahua IPC camera from the device label or web interface
- 2. Visit the official Dahua Security support website at www.dahuasecurity.com
- 3. Navigate to the product support or download section for your specific camera model
- 4. Download the latest firmware version dated April 2022 or later
- 5. Access the camera's web interface using an administrator account
- 6. Navigate to the firmware upgrade or system maintenance section
- 7. Upload and apply the new firmware file
- 8. Wait for the upgrade to complete and the camera to reboot
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-30561 — 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-2022-30561 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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