External risk intelligence

D-Link NAS Command Injection Vulnerability

CVE advisoryKnown Exploit

CVE-2024-3273

Certain D-Link network-attached storage devices are affected by a command injection vulnerability that can lead to unauthorized command execution. These products are no longer supported by the vendor and should be retired, posing a business risk due to potential system compromise. <hr> A command injection vulnerability

4Halo Surface Signal

Command Injection

Dlink Dns 320l Firmware

1.01.0702.20131.03.0904.20131.111.011.00.0409.20131.091.08

External exposure likelihood

Halo Surface Signal score for CVE-2024-3273

The affected devices are network-attached storage (NAS) units. These products are frequently deployed in environments where their management interfaces or web-based services are reachable from the network, and in many configurations, they are exposed to the internet to facilitate remote file access and administrative tasks.

Horizon Alert

Summary of the vulnerability and why it matters

Certain D-Link network-attached storage devices are affected by a command injection vulnerability. This flaw could allow an attacker to execute arbitrary commands on the affected systems. The identified products are no longer supported by the vendor and should be retired.

  • Vulnerable D-Link NAS devices
  • Command injection flaw
  • Unauthorized command execution

Attack Path

How an attacker could exploit the issue

This vulnerability allows an attacker to inject malicious commands into affected D-Link devices. These devices are often accessible over a network, making them potential targets for remote exploitation. By sending a specially crafted request, an attacker can trick the device into executing arbitrary commands, leading to a compromise of the system. The vendor has indicated these products are end-of-life and should be retired.

  • External network exposure required.
  • Unauthenticated attacker sends malicious request.
  • Command injection leads to system control.

Live Threat

Current exploitation, exposure, and threat context

A critical command injection vulnerability has been publicly disclosed, impacting several D-Link Network Attached Storage (NAS) devices. Attackers can exploit this vulnerability remotely without any special privileges to inject commands, potentially leading to unauthorized code execution. The affected devices are identified as end-of-life and no longer supported by the vendor, indicating they should be retired and replaced.

  • Likely attacker skill level: Low
  • Required access or conditions: Remote, no authentication
  • Business risk or urgency: High, replace devices

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

The identified vulnerability affects D-Link NAS devices, specifically the DNS-320L, DNS-325, DNS-327L, and DNS-340L. These products are no longer supported by the vendor and are considered end-of-life. The recommended action is to retire and replace these devices due to the potential for command injection and remote code execution.

  • Identify and inventory affected devices.
  • Isolate or disconnect devices from the network.
  • Replace affected devices with supported alternatives.

Frequently asked questions

What are D-Link DNS-320L, DNS-325, DNS-327L, and DNS-340L devices used for?

These D-Link devices are Network Attached Storage (NAS) units, used for storing and sharing files over a network. They can serve as central repositories for data and media within a home or small office environment.

What kind of weakness does CVE-2024-3273 represent?

CVE-2024-3273 is a command injection vulnerability. This means an attacker can insert malicious commands into the device's input fields, tricking the system into executing them.

What conditions allow an attacker to exploit this D-Link vulnerability?

An attacker can exploit this vulnerability remotely without needing any special access or authentication. The attack involves sending a manipulated argument in a specific HTTP GET request to the affected device.

Who should be concerned about CVE-2024-3273, based on device exposure?

Organizations and individuals using these D-Link NAS devices that are accessible from the internet or from less trusted internal network segments should be concerned. These devices are often exposed to the network for remote access, increasing their risk profile.

What is the first step for managing this D-Link vulnerability?

Since the affected D-Link devices are end-of-life and no longer supported, the primary action is to retire and replace them with current, supported hardware to mitigate the risk.

References