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

Summaryinfo

A vulnerability has been found in D-Link DIR-X3260 and classified as critical. Affected is the function SetTriggerPPPoEValidate of the file prog.cgi. Performing a manipulation results in stack-based overflow. This vulnerability is identified as CVE-2023-51622. The attack can only be performed from the local network. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

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

D-Link DIR-X3260 prog.cgi SetTriggerPPPoEValidate 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-21672.

The weakness was released 01/12/2024. It is possible to read the advisory at zerodayinitiative.com. This vulnerability is uniquely identified as CVE-2023-51622 since 12/20/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing 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/

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CPE 2.2info

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