PT-2019-14977 · Tp Link · Tp-Link Tl-Wr841N

Nguyen Hoang Thach · Published 2019-11-26 · Updated 2020-01-14 · CVE-2019-17147

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions TP-LINK TL-WR841N (affected versions not specified)

Description This issue allows remote attackers to execute arbitrary code on affected installations. Authentication is not required to exploit this issue. The 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 issue to execute code in the context of the admin user.

Recommendations At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2019-17147

ZDI-19-992

Affected Products

Tp-Link Tl-Wr841N

References · 5

• 🔥 https://github.com/DrmnSamoLiu/CVE-2019-17147_Practice_Material · Exploit
• https://osv.dev/vulnerability/CVE-2019-17147 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-17147 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-19-992 · Security Note
• https://tp-link.com/us/support/download/tl-wr841n/#Firmware · Note