CVE-2020-8423 — HIGH (7.2) — White Hats Nepal

Vulnerability Description

A buffer overflow in the httpd daemon on TP-Link TL-WR841N V10 (firmware version 3.16.9) devices allows an authenticated remote attacker to execute arbitrary code via a GET request to the page for the configuration of the Wi-Fi network.

CVSS Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Tp-Link	Tl-Wr841N Firmware	3.16.9
Tp-Link	Tl-Wr841N	v10

Related Weaknesses (CWE)

CWE-120

References

https://ktln2.org/2020/03/29/exploiting-mips-router/ExploitThird Party Advisory
https://www.tp-link.com/us/securityVendor Advisory
https://ktln2.org/2020/03/29/exploiting-mips-router/ExploitThird Party Advisory
https://www.tp-link.com/us/securityVendor Advisory

FAQ

What is CVE-2020-8423?

CVE-2020-8423 is a vulnerability with a CVSS score of 7.2 (HIGH). A buffer overflow in the httpd daemon on TP-Link TL-WR841N V10 (firmware version 3.16.9) devices allows an authenticated remote attacker to execute arbitrary code via a GET request to the page for the...

How severe is CVE-2020-8423?

CVE-2020-8423 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-8423?

Check the references section above for vendor advisories and patch information. Affected products include: Tp-Link Tl-Wr841N Firmware, Tp-Link Tl-Wr841N.