What is CVE-2022-40717?

CVE-2022-40717 is a stack-based buffer overflow vulnerability that allows network-adjacent attackers to execute arbitrary code on affected D-Link DIR-2150 4.0.1 routers.

Is authentication required to exploit CVE-2022-40717?

No, authentication is not required to exploit CVE-2022-40717.

Which service is affected by CVE-2022-40717?

The anweb service, which listens on TCP ports 80 and 443 by default, is affected by CVE-2022-40717.

What is the severity of CVE-2022-40717?

CVE-2022-40717 has a severity rating of 8.8 (high).

How do I fix CVE-2022-40717?

To fix CVE-2022-40717, it is recommended to update the firmware of the D-Link DIR-2150 router to a version that addresses the vulnerability.

Vulnerability/
CVE-2022-40717

high

8.8

CWE

787 121

26/1/2023

3/8/2024

CVE-2022-40717: D-Link DIR-2150 anweb action_handler Stack-based Buffer Overflow Remote Code Execution Vulnerability

First published: Thu Jan 26 2023(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected D-Link DIR-2150 4.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the anweb service, which listens on TCP ports 80 and 443 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15727.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Dlink Dir-2150 Firmware	<=4.0.1
Dlink Dir-2150

Remedy

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10304

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Reference Links

Frequently Asked Questions

What is CVE-2022-40717?
CVE-2022-40717 is a stack-based buffer overflow vulnerability that allows network-adjacent attackers to execute arbitrary code on affected D-Link DIR-2150 4.0.1 routers.
Is authentication required to exploit CVE-2022-40717?
No, authentication is not required to exploit CVE-2022-40717.
Which service is affected by CVE-2022-40717?
The anweb service, which listens on TCP ports 80 and 443 by default, is affected by CVE-2022-40717.
What is the severity of CVE-2022-40717?
CVE-2022-40717 has a severity rating of 8.8 (high).
How do I fix CVE-2022-40717?
To fix CVE-2022-40717, it is recommended to update the firmware of the D-Link DIR-2150 router to a version that addresses the vulnerability.

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