ZDI-21-681: (0Day) D-Link DAP-1330 lighttpd http_parse_request Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1330 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the HNAP_AUTH HTTP header. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of the device.

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• alias/ZDI-CAN-12065
• alias/CVE-2021-34829
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• canonical/d-link dap-1330