PT-2022-2227 · Tp Link · Tp-Link Wr-886N

Published 2022-03-09 · Updated 2022-03-18 · CVE-2021-44626

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions TP-LINK WR-886N version 20190826 2.3.8

Description The issue is caused by a buffer overflow on the stack in the /cloud config/router post/get reg verify code feature of the TP-LINK WR-886N router's firmware. This allows a remote attacker to execute arbitrary code on the system via a specially crafted request.

Recommendations For version 20190826 2.3.8, as a temporary workaround, consider disabling the /cloud config/router post/get reg verify code feature until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2022-02311

CVE-2021-44626

Affected Products

Tp-Link Wr-886N

References · 6

• 🔥❌ https://github.com/Yu3H0/IoT_CVE/tree/main/886N/getRegVeriRegister · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2021-44626 · Security Note
• https://bdu.fstec.ru/vul/2022-02311 · Security Note
• https://osv.dev/vulnerability/CVE-2021-44626 · Vendor Advisory
• https://t.me/cvenotify/28176 · Telegram Post
• https://t.me/cvenotify/28163 · Telegram Post