ZDI-CAN-8457: TP-LINK TL-WR841N Web Service http_parser_main Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-LINK TL-WR841N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 80 by default. When parsing the Host request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length static buffer. An attacker can leverage this vulnerability to execute code in the context of the admin user.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| TP-Link TL-WR841ND Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-8457?
The severity of ZDI-CAN-8457 is critical due to its ability to allow remote code execution without authentication.
How do I fix ZDI-CAN-8457?
To fix ZDI-CAN-8457, update your TP-LINK TL-WR841N router to the latest firmware version provided by TP-Link.
What product is affected by ZDI-CAN-8457?
ZDI-CAN-8457 affects the TP-LINK TL-WR841N router.
Can ZDI-CAN-8457 be exploited remotely?
Yes, ZDI-CAN-8457 can be exploited remotely since it does not require authentication.
What type of vulnerability is ZDI-CAN-8457?
ZDI-CAN-8457 is a remote code execution vulnerability in the web service of TP-LINK TL-WR841N routers.
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