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CVE-2024-3273: D-Link Multiple NAS Devices Command Injection Vulnerability

CVE-2024-3273 is rated critical with a CVSS v3.1 base score of 9.8 and affects D-Link Multiple NAS Devices, along with 20 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available. CISA added it to its Known Exploited Vulnerabilities catalog on 2024-04-11, which means exploitation in the wild has been observed.

Vulnerability description

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, was found in D-Link DNS-320L, DNS-325, DNS-327L and DNS-340L up to 20240403. Affected is an unknown function of the file /cgi-bin/nas_sharing.cgi of the component HTTP GET Request Handler. The manipulation of the argument system leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-259284. 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.

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-77: Improper Neutralization of Special Elements used in a Command

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Affected products

  • D-Link DNS 320l Firmware: 1.01.0702.2013; 1.03.0904.2013; 1.11
  • D-Link DNS 120 Firmware: all versions listed by NVD
  • D-Link Dnr 202l Firmware: all versions listed by NVD
  • D-Link DNS 315l Firmware: all versions listed by NVD
  • D-Link DNS 320 Firmware: all versions listed by NVD
  • D-Link DNS 320lw Firmware: all versions listed by NVD
  • D-Link DNS 321 Firmware: all versions listed by NVD
  • D-Link Dnr 322l Firmware: all versions listed by NVD
  • D-Link DNS 323 Firmware: all versions listed by NVD
  • D-Link DNS 325 Firmware: 1.01
  • D-Link DNS 326 Firmware: all versions listed by NVD
  • D-Link DNS 327l Firmware: 1.00.0409.2013; 1.09
  • D-Link Dnr 326 Firmware: all versions listed by NVD
  • D-Link DNS 340l Firmware: 1.08
  • D-Link DNS 343 Firmware: all versions listed by NVD

References