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Rewterz Threat Advisory –CVE-2021-34865 – NETGEAR Multiple Routers Authentication Bypass Security Vulnerability

Severity

Medium

Analysis Summary

CVE-2021-34865

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.

Impact

  • Bypass Security
  • Privilege Escalation

Affected Vendors

NETGEAR

Affected Products

  • AC2100
  • AC2400
  • D7000v1

Remediation

Refer to NetGear Security advisory for the patch, upgrade, or suggested workaround information..

https://kb.netgear.com/000063955/Security-Advisory-for-Authentication-Bypass-Vulnerability-on-Some-Routers-PSV-2021-0083?article=000063955