PT-2022-12248 · Tp Link · Tp-Link Wr-886N

Published 2022-02-08 · Updated 2022-02-11 · CVE-2021-44864

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions TP-Link WR886N version 3.0 1.0.1 Build 150127 Rel.34123n

Description The issue allows authenticated attackers to crash the router's httpd services by sending a request to the "/userRpm/PingIframeRpm.htm" API endpoint with a parameter containing redundant '&' characters, potentially causing a buffer overflow.

Recommendations For TP-Link WR886N version 3.0 1.0.1 Build 150127 Rel.34123n, consider restricting access to the "/userRpm/PingIframeRpm.htm" API endpoint to prevent potential exploitation. Avoid using parameters with redundant '&' characters in this endpoint until the issue is resolved. 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

CVE-2021-44864

Affected Products

Tp-Link Wr-886N

References · 4

• 🔥 https://github.com/zhlu32/cve/blob/main/tplink/wr886n/Tplink-wr886n-V3-Ping-DOS.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-44864 · Security Note
• https://osv.dev/vulnerability/CVE-2021-44864 · Vendor Advisory
• https://t.me/cibsecurity/37012 · Telegram Post