Missing AuthenticationWeakness · CWE-306

CVE-2019-25240

CRITICAL · 9.8 CVSS v3.1 Published 2025-12-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit 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
Rifatron 5brid DVR contains an unauthenticated vulnerability in the animate.cgi script that allows unauthorized access to live video streams. Attackers can exploit the Mobile Web Viewer module by specifying channel numbers to retrieve sequential video snapshots without authentication.

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 confidence

Rifatron 5brid DVR contains an unauthenticated access vulnerability in the animate.cgi script within its Mobile Web Viewer module. Attackers can retrieve sequential video snapshots from specific camera channels without any authentication by manipulating channel number parameters.

MitigationRestrict external network access to the DVR system; implement proper authentication and authorization controls on the animate.cgi endpoint; contact vendor for firmware patch.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the DVR device model
    Access the device administration interface or check device documentation to confirm the model is Rifatron 5brid DVR
    Affected if The device is a Rifatron 5brid DVR system
  2. Verify Mobile Web Viewer module is accessible
    Attempt to access the Mobile Web Viewer web interface (typically available on the same IP as the DVR admin panel, often on port 8080 or 81, or under paths like /mobile, /mobilelite, or /webviewer)
    Affected if Mobile Web Viewer module is exposed and accessible on the network
  3. Confirm animate.cgi endpoint exists
    Make a direct HTTP request to the animate.cgi script within the Mobile Web Viewer path (for example, accessing a URL pattern like http://[DVR-IP]:[PORT]/cgi-bin/animate.cgi or similar path under the Mobile Web Viewer)
    Affected if The animate.cgi script responds to HTTP requests
  4. Test unauthenticated parameter manipulation
    Send an HTTP request to the animate.cgi endpoint with different channel number parameter values (such as ?channel=1, ?channel=2, etc.) without providing any authentication credentials
    Affected if The script returns sequential video snapshots or image data without requiring authentication

A user is affected if they operate a Rifatron 5brid DVR with the Mobile Web Viewer enabled and the animate.cgi endpoint accessible without any authentication, allowing unauthorized video snapshot retrieval via parameter manipulation.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Restrict external network access to the DVR system; implement proper authentication and authorization controls on the animate.cgi endpoint; contact vendor for firmware patch.

Have this fixed 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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Scan for this in your stack

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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-2019-25240 in production — separate from our analysis above.

No notes yet

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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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