CVE-2021-27248: D-Link DAP-2020 webproc getpage Stack-based Buffer Overflow Remote Code Execution Vulnerability
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.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 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.
Affected Software
Remediation
Event History
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.