ZDI-CAN-14110: NETGEAR R6400v2 UPnP uuid Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400v2 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. When parsing the uuid request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NETGEAR R6400v2 firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-14110?
The severity of ZDI-CAN-14110 is considered critical due to the potential for arbitrary code execution by network-adjacent attackers.
How do I fix ZDI-CAN-14110?
To fix ZDI-CAN-14110, update the firmware of NETGEAR R6400v2 routers to the latest version provided by the manufacturer.
What products are affected by ZDI-CAN-14110?
ZDI-CAN-14110 specifically affects NETGEAR R6400v2 routers.
Is authentication required to exploit ZDI-CAN-14110?
No, authentication is not required to exploit ZDI-CAN-14110, making it more dangerous to vulnerable systems.
What type of attack does ZDI-CAN-14110 enable?
ZDI-CAN-14110 enables network-adjacent attackers to execute arbitrary code on affected NETGEAR R6400v2 routers.
- agent/references
- agent/severity
- agent/title
- agent/type
- agent/description
- agent/source
- agent/tags
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-1303
- alias/ZDI-CAN-14110
- alias/CVE-2021-34991
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/event
- agent/softwarecombine
- vendor/netgear
- canonical/netgear r6400v2 firmware