PT-2022-27852 · Microchip · Pic Lightblue Explorer Demo+1

Published 2022-12-19 · Updated 2023-08-08 · CVE-2022-46400

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Microchip RN4870 module firmware version 1.43 Microchip PIC LightBlue Explorer Demo version 4.2 DT100112

Description The issue allows attackers to bypass passkey entry in legacy pairing.

Recommendations For Microchip RN4870 module firmware version 1.43, consider disabling legacy pairing until a patch is available. For Microchip PIC LightBlue Explorer Demo version 4.2 DT100112, restrict the use of legacy pairing to minimize the risk of exploitation.

Exploit

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2022-46400

Affected Products

Microchip Rn4870

Pic Lightblue Explorer Demo

References · 9

• 🔥 https://computer.org/csdl/proceedings-article/sp/2023/933600a521/1He7Yja1AYM · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-46400 · Security Note
• https://osv.dev/vulnerability/CVE-2022-46400 · Vendor Advisory
• https://microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/deviating-behaviors-in-bluetooth-le · Vendor Advisory
• https://microchip.com · Note
• https://computer.org/csdl/proceedings/sp/2023/1He7WWuJExG · Note
• https://t.me/cvenotify/40213 · Telegram Post
• https://t.me/cibsecurity/54943 · Telegram Post
• https://t.me/cvenotify/40203 · Telegram Post