CVE-2021-34863

published 2021-10-25

CVE-2021-34863: This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 1.01rc001 routers. Authentication…

high 8.8 CVSS 3.1

AV A AC L PR N UI N S U C H I H A H

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 1.01rc001 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the var:page parameter provided to the webproc endpoint. 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-13271.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
d-link	dap-2020	—	—
dlink	dap-2020_firmware	<= 1.01	—

CWE-121