CVE-2019-17147 — HIGH (8.8)

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.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Tp-Link	Tl-Wr841N Firmware	0.9.1_4.16
Tp-Link	Tl-Wr841N	-

Related Weaknesses (CWE)

CWE-120

References

https://www.tp-link.com/us/support/download/tl-wr841n/#FirmwareProduct
https://www.zerodayinitiative.com/advisories/ZDI-19-992/Third Party AdvisoryVDB Entry
https://www.tp-link.com/us/support/download/tl-wr841n/#FirmwareProduct
https://www.zerodayinitiative.com/advisories/ZDI-19-992/Third Party AdvisoryVDB Entry

FAQ

What is CVE-2019-17147?

CVE-2019-17147 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...

How severe is CVE-2019-17147?

CVE-2019-17147 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-17147?

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