dbcve.org
Dar 7000 FirmwareOperating system · Dlink

CVE-2024-4964

CRITICAL · 9.8 CVSS v3.1 Published 2024-05-16
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
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability has been found in D-Link DAR-7000-40 V31R02B1413C and classified as critical. This vulnerability affects unknown code of the file /firewall/urlblist.php. The manipulation of the argument file leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-264532. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

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

Unrestricted file upload vulnerability in D-Link DAR-7000-40 firewall's /firewall/urlblist.php endpoint. The 'file' argument lacks proper validation, allowing remote authenticated attackers to upload arbitrary files to the device. With CVSS 9.8, this critical flaw can lead to complete system compromise.

MitigationSince D-Link DAR-7000-40 is end-of-life and receives no vendor patches, retire and replace the device immediately. As an interim measure, disable external access to the management interface and place the device behind a properly configured firewall.

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
Dar 7000 FirmwareOperating system
Affected:= 31r02b1413c

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 device model and firmware version
    Access the device's web management interface or check via CLI/ SNMP. Look for the model number DAR-7000-40 and navigate to Status or System Information to find the firmware version. If using CLI, commands like 'show version' or 'system info' typically reveal the firmware build.
    Affected if The device is a D-Link DAR-7000-40 running firmware version 31r02b1413c
  2. Verify management interface accessibility
    Determine if the device's web-based management interface (port 80/443) is reachable from untrusted networks. Check firewall rules, NAT configurations, and ACLs that control access to the device's management IP. Attempt to access the login page from an external network or review network diagrams.
    Affected if The management interface is accessible from external networks or untrusted zones
  3. Confirm /firewall/urlblist.php endpoint exposure
    Using a web browser or curl, attempt to access https://<device-ip>/firewall/urlblist.php. Check if the endpoint responds (even with an authentication redirect or error). Review any reverse proxy or access control configurations that may expose this path.
    Affected if The /firewall/urlblist.php endpoint is reachable and responds to requests
  4. Assess authentication status and credential security
    Review whether default, weak, or guessed credentials are in use for the device admin account. Check if multi-factor authentication is enabled. Examine if the device allows SSH or web access with single-factor authentication.
    Affected if The device uses default credentials, weak passwords, or single-factor authentication without MFA
  5. Check network placement and ACLs
    Review the device's position in the network topology. Verify if it is directly exposed to the internet or behind a properly configured perimeter firewall. Examine inbound firewall rules allowing access to the management ports.
    Affected if The device is directly exposed to the internet or not properly segmented behind a protective firewall

You are affected if you have a D-Link DAR-7000-40 firewall running firmware 31r02b1413c with its management interface and /firewall/urlblist.php endpoint accessible to network attackers, especially from external networks.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Since D-Link DAR-7000-40 is end-of-life and receives no vendor patches, retire and replace the device immediately. As an interim measure, disable external access to the management interface and place the device behind a properly configured firewall.

Recommended fix High confidence
  1. 1. This vulnerability affects D-Link DAR-7000-40 firmware V31R02B1413C which is officially End-of-Life (EOL) and no longer supported by the vendor.
  2. 2. The vendor (D-Link) has explicitly stated this product should be retired and replaced.
  3. 3. Since no firmware patch or update will be released, the affected device should be taken out of service.
  4. 4. Replace the EOL DAR-7000-40 with a currently supported security appliance from D-Link or an alternative vendor.
  5. 5. If immediate replacement is not possible, isolate the device on a restricted network segment with strict firewall rules limiting access to only essential internal systems.
  6. 6. Disable the /firewall/urlblist.php functionality if possible through the device's web interface or by blocking access to that URL path at the network perimeter.
  7. 7. Implement additional network monitoring to detect any suspicious file upload attempts to the affected device.
Caveat This is an End-of-Life product with no available firmware updates - replacement is required

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

Fix this in Dar 7000 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-2024-4964 in production — separate from our analysis above.

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What belongs here
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  • Version or environment caveats, and links to real fixes
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