ZDI-22-265: TP-Link TL-WR940N httpd httpRpmFs Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of file name extensions. The issue results from the lack of proper validation of 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 |
|---|---|---|
| TP-Link TL-WR940N V2 Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-265?
The severity of ZDI-22-265 is critical due to the potential for arbitrary code execution by unauthenticated network-adjacent attackers.
How do I fix ZDI-22-265?
To fix ZDI-22-265, update the firmware of your TP-Link TL-WR940N router to the latest version provided by TP-Link.
What routers are affected by ZDI-22-265?
ZDI-22-265 specifically affects TP-Link TL-WR940N routers.
Can ZDI-22-265 be exploited remotely?
Yes, ZDI-22-265 can be exploited remotely by attackers located on the same network as the TP-Link TL-WR940N devices.
Is authentication required to exploit ZDI-22-265?
No, authentication is not required to exploit ZDI-22-265, making it more dangerous for affected users.
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- canonical/tp-link tl-wr940n v2 firmware