What is the severity of ZDI-CAN-21670?

ZDI-CAN-21670 is considered a high severity vulnerability due to its potential for remote code execution by authenticated attackers.

How do I fix ZDI-CAN-21670?

To fix ZDI-CAN-21670, update the D-Link DIR-X3260 router to the latest firmware version provided by D-Link.

What type of attackers can exploit ZDI-CAN-21670?

ZDI-CAN-21670 can be exploited by network-adjacent attackers who have authentication access to the affected router.

What component is affected by ZDI-CAN-21670?

The prog.cgi binary, which manages HNAP requests, is the specific component affected by ZDI-CAN-21670.

What impact does ZDI-CAN-21670 have on affected devices?

ZDI-CAN-21670 allows attackers to execute arbitrary code on affected D-Link DIR-X3260 routers, potentially compromising the device's integrity.

Vulnerability/
ZDI-CAN-21670

medium

6.8

11/1/2024

3/5/2024

ZDI-CAN-21670: ZDI-24-041: D-Link DIR-X3260 prog.cgi SetDeviceSettings 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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Frequently Asked Questions

What is the severity of ZDI-CAN-21670?
ZDI-CAN-21670 is considered a high severity vulnerability due to its potential for remote code execution by authenticated attackers.
How do I fix ZDI-CAN-21670?
To fix ZDI-CAN-21670, update the D-Link DIR-X3260 router to the latest firmware version provided by D-Link.
What type of attackers can exploit ZDI-CAN-21670?
ZDI-CAN-21670 can be exploited by network-adjacent attackers who have authentication access to the affected router.
What component is affected by ZDI-CAN-21670?
The prog.cgi binary, which manages HNAP requests, is the specific component affected by ZDI-CAN-21670.
What impact does ZDI-CAN-21670 have on affected devices?
ZDI-CAN-21670 allows attackers to execute arbitrary code on affected D-Link DIR-X3260 routers, potentially compromising the device's integrity.

collector/zdi-published
source/ZDI
alias/ZDI-CAN-21670
agent/last-modified-date
agent/first-publish-date
agent/title
collector/zdi-advisory
alias/ZDI-24-041
alias/CVE-2023-51621
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agent/severity
agent/references
agent/softwarecombine
agent/description
agent/event
agent/trending
agent/type
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vendor/d-link
canonical/d-link dir-x3260

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