ZDI-20-1451: NETGEAR Multiple Routers mini_httpd Authentication Bypass Vulnerability
This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 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 in conjunction with other vulnerabilities to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NETGEAR Multiple Devices |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-20-1451?
The severity of ZDI-20-1451 is classified as high due to the ability for network-adjacent attackers to bypass authentication.
How do I fix ZDI-20-1451?
To fix ZDI-20-1451, ensure your NETGEAR router firmware is updated to the latest version provided by NETGEAR.
Which NETGEAR routers are affected by ZDI-20-1451?
ZDI-20-1451 affects several models including R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400.
What type of attack does ZDI-20-1451 enable?
ZDI-20-1451 enables network-adjacent attackers to perform unauthorized access by bypassing authentication.
Is a patch available for ZDI-20-1451?
Yes, NETGEAR has released a patch to address the vulnerabilities associated with ZDI-20-1451.
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