CVE-2020-17409: NETGEAR Multiple Routers mini_httpd Authentication Bypass Vulnerability
First published: Tue Oct 13 2020(Updated: )
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66. 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 disclose stored credentials, leading to further compromise. Was ZDI-CAN-10754.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Netgear R6020 Firmware | <1.0.0.44 | |
| NETGEAR R6020 | ||
| Netgear R6080 Firmware | <1.0.0.44 | |
| Netgear R6080 | ||
| Netgear R6120 Firmware | <1.0.0.70 | |
| NETGEAR R6120 | ||
| Netgear R6220 Firmware | <1.1.0.100 | |
| NETGEAR R6220 | ||
| Netgear R6230 Firmware | <1.1.0.100 | |
| Netgear R6230 | ||
| Netgear R6260 Firmware | <1.1.0.76 | |
| NETGEAR R6260 | ||
| Netgear R6330 Firmware | <1.1.0.76 | |
| Netgear R6330 | ||
| Netgear R6350 Firmware | <1.1.0.76 | |
| Netgear R6350 | ||
| Netgear R6850 Firmware | <1.1.0.76 | |
| Netgear R6850 | ||
| Netgear Jnr3210 Firmware | ||
| Netgear Jnr3210 | ||
| Netgear Wnr2020 Firmware | ||
| Netgear Wnr2020 | ||
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Reference Links
Frequently Asked Questions
What is CVE-2020-17409?
CVE-2020-17409 is a vulnerability that allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR routers.
Which routers are affected by CVE-2020-17409?
NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66 are affected by CVE-2020-17409.
How severe is CVE-2020-17409?
CVE-2020-17409 has a severity score of 6.5, which is considered medium.
Is authentication required to exploit CVE-2020-17409?
No, authentication is not required to exploit CVE-2020-17409.
How can I fix CVE-2020-17409?
To fix CVE-2020-17409, install the latest firmware update provided by NETGEAR.
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