CVE-2019-17147 - CVE House
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Status published High CVE-2019-17147

This vulnerability allows remote attackers to execute arbitrary code on...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Nguyen Hoang Thach - Security Researcher at VNPT ISC

Affected Vendor

Affected Software

TL-WR841N
Vulnerable Versions:
0.9.1 4.16 v007c.0 Build 180613 Rel.42415n

Timeline

Official Publish: January 7th, 2020
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)