D-Link DIR-X3260 prog.cgi SetIPv6PppoeSettings stack-based overflow

Summaryinfo

A vulnerability was found in D-Link DIR-X3260. It has been classified as critical. Affected by this issue is the function SetIPv6PppoeSettings of the file prog.cgi. The manipulation leads to stack-based overflow. This vulnerability is listed as CVE-2023-51620. The attack must be carried out from within the local network. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in D-Link DIR-X3260 (Router Operating System) (unknown version) and classified as critical. This issue affects the function SetIPv6PppoeSettings of the file prog.cgi. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to 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). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

D-Link DIR-X3260 prog.cgi SetIPv6PppoeSettings 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-X3260 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-21669.

The weakness was presented 01/12/2024. The advisory is shared at zerodayinitiative.com. The identification of this vulnerability is CVE-2023-51620 since 12/20/2023. 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 11/23/2024).

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Router Operating System

Vendor

• D-Link

Name

• DIR-X3260

License

• commercial

Website

• Vendor: https://www.dlink.com/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

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