ZDI-20-1423: NETGEAR Multiple Routers mini_httpd Command Injection Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. When parsing the funjsq_access_token parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-20-1423?
The severity of ZDI-20-1423 is considered high due to the potential for arbitrary code execution.
How do I fix ZDI-20-1423?
To fix ZDI-20-1423, apply the latest firmware update provided by NETGEAR for affected router models.
Which NETGEAR routers are affected by ZDI-20-1423?
ZDI-20-1423 affects multiple NETGEAR routers including R6020, R6080, R6120, among others.
What type of attack is enabled by ZDI-20-1423?
ZDI-20-1423 allows network-adjacent attackers to execute arbitrary code on vulnerable routers.
Is authentication required to exploit ZDI-20-1423?
Yes, authentication is required for an attacker to exploit ZDI-20-1423 successfully.
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