ZDI-22-519: (Pwn2Own) NETGEAR R6700v3 upnpd Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NETGEAR R6700v3 firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-519?
ZDI-22-519 is classified as a high-severity vulnerability due to its potential for arbitrary code execution without authentication.
How do I fix ZDI-22-519?
To mitigate ZDI-22-519, update your NETGEAR R6700v3 router to the latest firmware version provided by NETGEAR.
Who is affected by ZDI-22-519?
NETGEAR R6700v3 router installations are directly affected by the ZDI-22-519 vulnerability.
Can ZDI-22-519 be exploited remotely?
Yes, ZDI-22-519 can be exploited by network-adjacent attackers without requiring any form of authentication.
What type of vulnerability is ZDI-22-519?
ZDI-22-519 is a buffer overflow vulnerability affecting the handling of SOAP requests.
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- alias/ZDI-22-519
- alias/ZDI-CAN-15692
- alias/CVE-2022-27643
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