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Dir 2150 FirmwareOperating system · Dlink

CVE-2023-34281

HIGH · 8.0 CVSS v3.1 Published 2024-05-03
Fix available
A fix is available. Upgrade to 1.06 or later.
See remediation →
82/100
Remediation priority · High
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
D-Link DIR-2150 GetFirmwareStatus Target Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-2150 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the SOAP API interface, which listens on TCP port 80 by default. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20561.

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

Command injection vulnerability in D-Link DIR-2150 routers SOAP API GetFirmwareStatus function. The application fails to validate user-supplied input before passing it to a system call, allowing authenticated attackers (or those bypassing auth) to execute arbitrary commands as root.

MitigationApply vendor firmware patch when available. Until then, restrict network access to port 80/SOAP interface via firewall rules or network segmentation to prevent unauthorized adjacent network attackers.

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
Dir 2150 FirmwareOperating system
Affected:< 1.06

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
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:L/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 device model
    Check the router label or access the web interface to confirm the model is D-Link DIR-2150
    Affected if Device is not a D-Link DIR-2150
  2. Check the firmware version
    Access the router web interface (typically at 192.168.0.1) and navigate to Status or System Info page to view the firmware version, or run 'cat /proc/version' via telnet/SSH if available
    Affected if Firmware version is below 1.06 (e.g., 1.05, 1.04, etc.)
  3. Verify SOAP service accessibility
    Attempt to access the router's web interface on port 80 or check if port 80 is open via 'nmap -p 80 <router-ip>' or 'telnet <router-ip> 80'
    Affected if Port 80/SOAP interface is exposed and reachable from the network
  4. Check authentication status
    Attempt to access the SOAP API endpoint or web interface without credentials, or verify if authentication is enforced on the management interface
    Affected if SOAP interface is accessible without valid authentication or uses default/weak credentials

The environment is affected if the D-Link DIR-2150 router is running firmware version below 1.06 and has its SOAP interface (port 80) accessible on the network with authentication disabled or bypassed.

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 1.06 or later
Fixed in 1.06
Interim mitigation

Apply vendor firmware patch when available. Until then, restrict network access to port 80/SOAP interface via firewall rules or network segmentation to prevent unauthorized adjacent network attackers.

Recommended fix Moderate confidence

DIR-2150 Firmware version 1.06 or later

  1. 1. Navigate to the D-Link support website and locate the DIR-2150 firmware download page.
  2. 2. Download the latest available firmware version for the DIR-2150 router.
  3. 3. Access the router's web administration interface by entering the router's IP address in a web browser.
  4. 4. Log into the router administration panel with administrator credentials.
  5. 5. Navigate to the 'Management' or 'System' settings section.
  6. 6. Locate the 'Firmware Upgrade' or 'Update Firmware' option.
  7. 7. Click 'Browse' or 'Choose File' and select the downloaded firmware file.
  8. 8. Click 'Upload' or 'Upgrade' to begin the firmware update process.
Caveat Firmware updates may reset router configuration to defaults; backup current settings before upgrading

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

Fix this in Dir 2150 Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA2.0 h
8.0 hours of engineering $1,440
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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-2023-34281 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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  • No spam, self-promotion, credentials, or personal data