How severe is CVE-2021-27248?

CVE-2021-27248 has a severity rating of 8.8, which is considered high.

What is the affected software for CVE-2021-27248?

The affected software for CVE-2021-27248 is D-Link DAP-2020 v1.01rc001 firmware.

What is the vulnerability type of CVE-2021-27248?

CVE-2021-27248 is classified as a stack-based buffer overflow vulnerability.

Is authentication required to exploit CVE-2021-27248?

No, authentication is not required to exploit CVE-2021-27248.

Vulnerability/
CVE-2021-27248

high

8.8

CWE

121

14/4/2021

3/8/2024

CVE-2021-27248: D-Link DAP-2020 webproc getpage Stack-based Buffer Overflow Remote Code Execution Vulnerability

First published: Wed Apr 14 2021(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of CGI scripts. When parsing the getpage parameter, the process does not properly validate 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-10932.

Credit: zdi-disclosures@trendmicro.com zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
D-Link DAP-2020	=1.01-rc001
D-Link DAP-2020
D-Link DAP-2020	=1.01-rc001

Remedy

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201

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Reference Links

Frequently Asked Questions

What is CVE-2021-27248?
CVE-2021-27248 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points.
How severe is CVE-2021-27248?
CVE-2021-27248 has a severity rating of 8.8, which is considered high.
What is the affected software for CVE-2021-27248?
The affected software for CVE-2021-27248 is D-Link DAP-2020 v1.01rc001 firmware.
What is the vulnerability type of CVE-2021-27248?
CVE-2021-27248 is classified as a stack-based buffer overflow vulnerability.
Is authentication required to exploit CVE-2021-27248?
No, authentication is not required to exploit CVE-2021-27248.

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agent/description
agent/softwarecombine
agent/tags
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source/ZDI
alias/ZDI-21-203
alias/ZDI-CAN-10932
alias/CVE-2021-27248
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canonical/d-link dap-2020
version/d-link dap-2020/1.01-rc001
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