PT-2024-29980 · Espressif · Esp-Now

Published 2024-09-12 · Updated 2024-09-23 · CVE-2024-42483

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions ESP-NOW versions prior to 2.5.2

Description A replay attacks vulnerability was discovered in the ESP-NOW Component, which provides a connectionless Wi-Fi communication protocol. The issue arises because the cache is not differentiated by message types, making it a shared resource for all kinds of messages. This allows an attacker to clear the cache of its legitimate entries, creating an opportunity to re-inject previously captured packets.

Recommendations For versions prior to 2.5.2, update to version 2.5.2 to resolve the issue. As a temporary workaround, consider implementing measures to restrict the re-injection of previously captured packets, such as enhancing cache management to differentiate between message types.

Exploit

Fix

Insufficient Verification of Data Authenticity

Weakness Enumeration

CWE-345

CWE-349

Related Identifiers

CVE-2024-42483

GHSA-WF6Q-C2XR-77XJ

Affected Products

Esp-Now

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42483.json · Exploit
• 🔥 https://github.com/espressif/esp-now/security/advisories/GHSA-wf6q-c2xr-77xj · Exploit
• https://github.com/espressif/esp-now/commit/4e30db50d541b2909d278ef0db05de1a3d7190ef · Patch
• https://osv.dev/vulnerability/CVE-2024-42483 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-42483 · Security Note
• https://twitter.com/VulmonFeeds/status/1834268615438147990 · Twitter Post
• https://t.me/cvedetector/5490 · Telegram Post
• https://twitter.com/CVEnew/status/1834239463783895429 · Twitter Post