What is the severity of ZDI-CAN-21667?

The severity of ZDI-CAN-21667 is classified as critical due to its potential to allow remote code execution.

How do I fix ZDI-CAN-21667?

To fix ZDI-CAN-21667, ensure that you update your D-Link DIR-X3260 router to the latest firmware version provided by D-Link.

What are the implications of ZDI-CAN-21667?

The implications of ZDI-CAN-21667 include the possibility of unauthorized access and control over the affected router.

Who is affected by ZDI-CAN-21667?

ZDI-CAN-21667 affects users of the D-Link DIR-X3260 routers that have not been patched against this vulnerability.

Does ZDI-CAN-21667 require authentication to exploit?

Yes, ZDI-CAN-21667 requires authentication to exploit the vulnerability on affected installations.

Vulnerability/
ZDI-CAN-21667

medium

6.8

11/1/2024

3/5/2024

ZDI-CAN-21667: ZDI-24-039: D-Link DIR-X3260 prog.cgi SetMyDLinkRegistration Stack-based Buffer Overflow Remote Code Execution Vulnerability

First published: Thu Jan 11 2024(Updated: )

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.

Affected Software	Affected Version	How to fix
D-Link DIR-X3260

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Reference Links

Frequently Asked Questions

What is the severity of ZDI-CAN-21667?
The severity of ZDI-CAN-21667 is classified as critical due to its potential to allow remote code execution.
How do I fix ZDI-CAN-21667?
To fix ZDI-CAN-21667, ensure that you update your D-Link DIR-X3260 router to the latest firmware version provided by D-Link.
What are the implications of ZDI-CAN-21667?
The implications of ZDI-CAN-21667 include the possibility of unauthorized access and control over the affected router.
Who is affected by ZDI-CAN-21667?
ZDI-CAN-21667 affects users of the D-Link DIR-X3260 routers that have not been patched against this vulnerability.
Does ZDI-CAN-21667 require authentication to exploit?
Yes, ZDI-CAN-21667 requires authentication to exploit the vulnerability on affected installations.

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alias/ZDI-CAN-21667
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vendor/d-link
canonical/d-link dir-x3260

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