CVE-2019-17147: TP-LINK TL-WR841N Web Service http_parser_main Buffer Overflow Remote Code Execution Vulnerability
First published: Tue Jan 07 2020(Updated: )
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.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| TP-LINK TL-WR841N | ||
| Tp-link Tl-wr841n Firmware | =0.9.1_4.16 | |
| TP-LINK TL-WR841N |
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Reference Links
Frequently Asked Questions
What is CVE-2019-17147?
CVE-2019-17147 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of TP-LINK TL-WR841N routers.
How severe is CVE-2019-17147?
CVE-2019-17147 has a severity rating of 8.8 (Critical).
Is authentication required to exploit CVE-2019-17147?
No, authentication is not required to exploit CVE-2019-17147.
What is the affected software for CVE-2019-17147?
The affected software for CVE-2019-17147 is TP-LINK TL-WR841N routers with firmware version 0.9.1_4.16 or earlier.
How can I fix CVE-2019-17147?
To fix CVE-2019-17147, update the firmware of the TP-LINK TL-WR841N router to the latest version available from the TP-Link website.
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