Zero Day Initiative AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Zero Day Initiative CWE-121

NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the httpd service, which listens on TCP port 80 by default. When parsing the strings file, 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-13709.

Zero Day Initiative https://kb.netgear.com/000064313/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Extenders-Routers-and-DSL-Modem-Routers-PSV-2021-0159 [No types assigned]

Zero Day Initiative https://www.zerodayinitiative.com/advisories/ZDI-21-1274/ [No types assigned]