ZDI-20-334: (Pwn2Own) TP-Link Archer A7 tdpServer Command Injection Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the tdpServer service, which listens on UDP port 20002 by default. When parsing the slave_mac 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 the root user.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| TP-Link Archer A7 Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-20-334?
The severity of ZDI-20-334 is critical due to the ability to execute arbitrary code without authentication.
How do I fix ZDI-20-334?
To fix ZDI-20-334, update the firmware of the TP-Link Archer A7 AC1750 router to the latest version provided by TP-Link.
Who is affected by ZDI-20-334?
Users of the TP-Link Archer A7 AC1750 routers are affected by ZDI-20-334.
Can ZDI-20-334 be exploited remotely?
Yes, ZDI-20-334 can be exploited remotely by network-adjacent attackers.
Is authentication required to exploit ZDI-20-334?
No, authentication is not required to exploit ZDI-20-334.
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