PT-2022-2268 · Tp Link · Tp-Link Wr-886N

Published 2022-03-09 · Updated 2022-03-12 · CVE-2021-44631

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/reset cloud pwd 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 post request to the /cloud config/router post/reset cloud pwd API endpoint.

Recommendations For TP-LINK WR-886N version 20190826 2.3.8, consider disabling the /cloud config/router post/reset cloud pwd feature until a patch is available to prevent exploitation. Restrict access to this feature to minimize the risk of arbitrary code execution. Avoid using the /cloud config/router post/reset cloud pwd API endpoint until the issue is resolved.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2022-02378

CVE-2021-44631

Affected Products

Tp-Link Wr-886N

References · 5

• 🔥❌ https://github.com/Yu3H0/IoT_CVE/tree/main/886N/resetCloudPwdRegister · Exploit, Deleted
• https://osv.dev/vulnerability/CVE-2021-44631 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-44631 · Security Note
• https://bdu.fstec.ru/vul/2022-02378 · Security Note
• https://vuldb.com/ru/?id.194665 · Note