ZDI-CAN-16139: D-Link DIR-1935 HNAP_AUTH Stack-based Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of Login requests to the web management portal. When parsing the HNAP_AUTH header, 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.

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• agent/references
• agent/softwarecombine
• collector/zdi-advisory
• source/ZDI
• alias/ZDI-22-1491
• alias/ZDI-CAN-16139
• alias/CVE-2022-43622
• agent/software-canonical-lookup
• agent/severity
• agent/title
• agent/tags
• agent/type
• agent/description
• agent/event
• vendor/d-link
• canonical/d-link dir-1935