PT-2023-9253 · Actiontec · Actiontec Wcb6200Q

Logan Stratton · Published 2023-08-03 · Updated 2024-09-19 · CVE-2024-6143

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Actiontec WCB6200Q (affected versions not specified)

Description The issue is related to a buffer overflow vulnerability in the uh tcp recv header() function of the HTTP server in the Actiontec WCB6200Q Wi-Fi range extender microprogram. This vulnerability is caused by the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of the HTTP server. The vulnerability can be exploited remotely by network-adjacent attackers without requiring authentication.

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

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2024-05725

CVE-2024-6143

ZDI-24-806

Affected Products

Actiontec Wcb6200Q

References · 6

• https://osv.dev/vulnerability/CVE-2024-6143 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-24-806 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-6143 · Security Note
• https://bdu.fstec.ru/vul/2024-05725 · Security Note
• https://t.me/cvenotify/95313 · Telegram Post
• https://t.me/cvenotify/83698 · Telegram Post