D-Link DIR-3040 prog.cgi SetMyDLinkRegistration stack-based overflow

Summaryinfo

A vulnerability, which was classified as critical, has been found in D-Link DIR-3040. This impacts the function SetMyDLinkRegistration of the file prog.cgi. This manipulation causes stack-based overflow. The identification of this vulnerability is CVE-2023-41226. The attack needs to be done within the local network. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in D-Link DIR-3040 (Router Operating System) (affected version unknown). Affected by this vulnerability is the function SetMyDLinkRegistration of the file prog.cgi. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

D-Link DIR-3040 prog.cgi SetMyDLinkRegistration Stack-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-3040 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the prog.cgi binary, which handles HNAP requests made to the lighttpd webserver listening on TCP ports 80 and 443. The issue results from the lack of proper validation of a user-supplied string before copying it to a fixed-size stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21652.

The weakness was shared 09/07/2023 as ZDI-23-1334. The advisory is shared at zerodayinitiative.com. This vulnerability is known as CVE-2023-41226 since 08/24/2023. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/15/2025).

Upgrading eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-3040

License

• commercial

Website

• Vendor: https://www.dlink.com/

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion