PT-2021-5738 · Mediatek · Mediatek Microchips

Published 2021-12-25 · Updated 2022-01-10 · CVE-2021-37561

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions MediaTek microchips versions 7.4.0.0 MediaTek microchips (affected versions not specified), specifically chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915

Description The issue is related to the mishandling of the WPS (Wi-Fi Protected Setup) protocol and an out-of-bounds write in the Wi-Fi driver software of MediaTek microchips. This can allow a remote attacker to elevate their privileges. The vulnerability is associated with a buffer overflow in memory.

Recommendations For version 7.4.0.0, update to a newer version that addresses the mishandling of the WPS protocol and the out-of-bounds write issue. For other affected versions of MediaTek microchips, specifically chipsets MT7603E, MT7610, MT7612, MT7613, MT7615, MT7620, MT7622, MT7628, MT7629, MT7915, restrict access to the WPS protocol until a patch is available. As a temporary workaround, consider disabling the WPS protocol in affected devices until the issue is resolved.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2022-00181

CVE-2021-37561

Affected Products

Mediatek Microchips

References · 7

• https://osv.dev/vulnerability/CVE-2021-37561 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00181 · Security Note
• https://corp.mediatek.com/product-security-bulletin/January-2022 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37561 · Security Note
• https://t.me/cibsecurity/34618 · Telegram Post
• https://t.me/cvenotify/24919 · Telegram Post
• https://kb.netgear.com/000064368/Security-Advisory-for-WiFi-WPS-and-IEEE-1905-Vulnerabilities-on-Multiple-Products-PSV-2021-0298-PSV-2021-0300 · Note