ZDI-CAN-12216: (Pwn2Own) NETGEAR R7800 udchpd DHCP_REQUEST Command Injection Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the vendor_specific DHCP opcode. The issue results from the lack of proper validation of 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 |
|---|---|---|
| NETGEAR R7800 firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-12216?
ZDI-CAN-12216 has a critical severity rating due to its potential for remote code execution.
How do I fix ZDI-CAN-12216?
To resolve ZDI-CAN-12216, update the NETGEAR R7800 firmware to the latest version provided by the vendor.
Can ZDI-CAN-12216 be exploited remotely?
Yes, ZDI-CAN-12216 can be exploited by network-adjacent attackers without requiring authentication.
What type of devices are impacted by ZDI-CAN-12216?
ZDI-CAN-12216 affects NETGEAR R7800 routers.
Is user interaction required to exploit ZDI-CAN-12216?
No, no user interaction is required to exploit ZDI-CAN-12216.
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