CVE-2019-17147

Description

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. Was ZDI-CAN-8457.

CVSS Version 3.1

nvd

CVE ID: CVE-2019-17147
Base Score: 8.8
Base Severity: HIGH
Vector String:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8

CVSS Version 3.0

trendmicro

CVE ID: CVE-2019-17147
Base Score: 8.8
Base Severity: HIGH
Vector String:CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS Version 2.0

nvd

CVE ID: CVE-2019-17147
Base Score: 9.3
Base Severity: HIGH
Vector String:AV:N/AC:M/Au:N/C:C/I:C/A:C

Proof Of Concept

DrmnSamoLiu

This repo contains dumped flash partitions with firmware version vulnerable to CVE-2019-17147, and some useful binaries to downgrade and debug your WR841N router.

Refrence: GitHub

Refrence: NVDMITRE