Incorrect Permission AssignmentWeakness · CWE-732

CVE-2024-33435

CRITICAL · 9.8 CVSS v3.1 Published 2024-04-29
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
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
Insecure Permissions vulnerability in Guangzhou Yingshi Electronic Technology Co. Ncast Yingshi high-definition intelligent recording and playback system 2007-2017 allows a remote attacker to execute arbitrary code via the /manage/IPSetup.php backend function

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

Insecure permissions vulnerability in Ncast Yingshi high-definition intelligent recording/playback system allows unauthenticated remote attackers to execute arbitrary code through the /manage/IPSetup.php endpoint. The CVSS 9.8 score reflects trivial network exploitation with no authentication required for complete system compromise.

MitigationImmediately restrict network access to the /manage/ directory via firewall rules or VPN; implement authentication on the IPSetup.php endpoint; if no patch exists, consider network segmentation or replacement of this legacy system.

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. Confirm Ncast Yingshi system is present
    Identify if the Ncast Yingshi high-definition intelligent recording/playback system is installed in your environment by reviewing running services, web server configurations, or installed software inventories
    Affected if The system is present and exposed on the network
  2. Check if /manage/ directory is network accessible
    Probe your network perimeter or internal network to determine if the /manage/ directory is exposed via HTTP/HTTPS. Use a web scanner or curl command against the target IP/hostname
    Affected if The /manage/ directory is reachable without VPN or firewall restrictions
  3. Verify IPSetup.php endpoint accessibility
    Send an HTTP GET request to http://target/manage/IPSetup.php (or https) and observe whether the endpoint responds without requiring authentication credentials
    Affected if The endpoint returns a response without prompting for login credentials
  4. Confirm authentication is NOT enforced on IPSetup.php
    Inspect the response from the IPSetup.php endpoint. If it returns application functionality, configuration options, or accepts input without a session token or login redirect, authentication is not enforced
    Affected if The endpoint exposes application functionality or accepts parameters without authentication
  5. Check installed version if accessible
    If administrative interfaces or version information is available, retrieve the installed version of the Ncast Yingshi system to compare against any affected version ranges provided by the vendor
    Affected if The installed version falls within an affected range, if such ranges become known

You are affected if the Ncast Yingshi system is running with the /manage/IPSetup.php endpoint exposed and accessible without any authentication requirement.

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

Immediately restrict network access to the /manage/ directory via firewall rules or VPN; implement authentication on the IPSetup.php endpoint; if no patch exists, consider network segmentation or replacement of this legacy system.

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-2024-33435 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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