D-Link DIR-3040 1.20B03 MiniDLNA Service heap-based overflow

Summaryinfo

A vulnerability classified as critical was found in D-Link DIR-3040 1.20B03. Affected by this vulnerability is an unknown functionality of the component MiniDLNA Service. The manipulation results in heap-based overflow. This vulnerability is reported as CVE-2022-43648. The attacker must have access to the local network to execute the attack. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in D-Link DIR-3040 1.20B03 (Router Operating System). Affected is an unknown function of the component MiniDLNA Service. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-3040 1.20B03 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the MiniDLNA service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the MiniDLNA service. Was ZDI-CAN-19910.

The weakness was disclosed 03/30/2023 as ZDI-23-052. The advisory is shared for download at zerodayinitiative.com. This vulnerability is traded as CVE-2022-43648 since 10/21/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/20/2023).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-3040

Version

• 1.20B03

License

• commercial

Website

• Vendor: https://www.dlink.com/

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CPE 2.2info

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