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Lguvr 4h FirmwareOperating system · Hitron

CVE-2024-22771

HIGH · 7.5 CVSS v3.1 Published 2024-01-23
Fix available
A fix is available. Upgrade to 4.03 or later.
See remediation →
84/100
Remediation priority · High
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
Improper Input Validation in Hitron Systems DVR LGUVR-4H 1.02~4.02 allows an attacker to cause network attack in case of using defalut admin ID/PW.

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

Improper input validation vulnerability in Hitron Systems DVR LGUVR-4H firmware versions 1.02 through 4.02 allows remote attackers to conduct network attacks when the device uses default administrative credentials. The specific input validation weakness in the web interface or API endpoints permits malicious input to bypass security controls.

MitigationChange default admin credentials immediately; contact vendor for firmware update addressing input validation; if no update available, restrict network access to the device via firewall or VLAN isolation.

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
Lguvr 4h FirmwareOperating system
Affected:>= 1.03, < 4.03

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
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 device model
    Access the device web interface or check device labeling to confirm it is a Hitron LGUVR-4H DVR system
    Affected if Device is not a Hitron LGUVR-4H model
  2. Check firmware version
    Log into the device web interface and navigate to the System or About section to view the installed firmware version, or access the device via telnet/SSH if available to run 'version' or 'firmware info' commands
    Affected if Firmware version is 1.03, 1.04, 1.05, 2.01, 2.02, 3.01, 3.02, 4.01, or 4.02 (any version >= 1.03 and < 4.03)
  3. Verify default credentials are in use
    Attempt to log into the device web interface using the default administrative credentials (typically admin/admin or admin/1234 for this device series); if login succeeds with these credentials, default credentials are still active
    Affected if Default administrative username and password have not been changed from the factory defaults
  4. Confirm web interface or API is accessible
    Check if the device web management interface (typically HTTP/HTTPS on ports 80, 443, or 8080) is reachable from the network; verify that API endpoints are exposed and accessible
    Affected if Web interface or API endpoints are exposed on the network without firewall restriction
  5. Review network access controls
    Inspect network configuration to determine if the device management interface is protected by firewall rules, VLAN isolation, or ACLs restricting access to trusted IP addresses only
    Affected if Device web interface is directly accessible from untrusted networks without network segmentation or access controls

The device is affected if it is a Hitron LGUVR-4H running firmware version 1.03 through 4.02, has default administrative credentials still configured, and has its web interface or API accessible from the network.

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.

dbcve · scoped
Upgrade available Upgrade to 4.03 or later
Fixed in 4.03
Interim mitigation

Change default admin credentials immediately; contact vendor for firmware update addressing input validation; if no update available, restrict network access to the device via firewall or VLAN isolation.

Recommended fix High confidence

LGUVR-4H firmware version 4.03 or later

  1. 1. Identify the current firmware version of the Hitron Systems DVR LGUVR-4H device
  2. 2. Navigate to the official Hitron Systems website (www.hitron.co.kr) and locate the firmware download section for the LGUVR-4H product
  3. 3. Download the firmware version 4.03 or later (the fixed release)
  4. 4. Access the DVR device administration interface
  5. 5. Follow the vendor's documented firmware upgrade procedure to apply the new firmware
  6. 6. After the firmware upgrade is complete, verify the new version is installed
  7. 7. Change the default admin credentials to strong, unique credentials to address the default password aspect of this vulnerability
  8. 8. Restart the device if required by the firmware update process
Caveat Standard firmware upgrade risks apply - ensure backup of configuration if possible, and perform upgrade during maintenance window as device may be temporarily unavailable

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Lguvr 4h Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-2024-22771 in production — separate from our analysis above.

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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
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