PT-2022-27872 · Tp Link · Tp-Link Tl-Wr743Nd

Published 2022-12-20 · Updated 2022-12-28 · CVE-2022-46432

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TP-Link TL-WR743ND V1 versions prior to 3.12.20

Description An exploitable firmware modification vulnerability was discovered, allowing an attacker to conduct a Man-in-the-Middle (MITM) attack to modify the user-uploaded firmware image and bypass the CRC check. This enables attackers to execute arbitrary code or cause a Denial of Service (DoS).

Recommendations For versions prior to 3.12.20, update to a version later than 3.12.20 to resolve the issue. As a temporary workaround, consider restricting access to the firmware update process to minimize the risk of exploitation. Avoid using unsecured networks for firmware updates until the issue is resolved.

Exploit

Fix

Related Identifiers

CVE-2022-46432

Affected Products

Tp-Link Tl-Wr743Nd

References · 7

• 🔥 https://hackmd.io/@slASVrz_SrW7NQCsunofeA/B1Vgv1uwo · Exploit
• https://tp-link.com/us/press/security-advisory · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-46432 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-46432 · Security Note
• https://t.me/cvenotify/40261 · Telegram Post
• https://t.me/cibsecurity/54997 · Telegram Post
• https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/B1Vgv1uwo · Note