CVE-2024-42483 ESP-NOW Replay Attacks Vulnerability
Attackers can replay captured packets by clearing shared caches, allowing injection of old messages in ESP-NOW communications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-42483?
CVE-2024-42483 is a medium-severity vulnerability in espressif esp-now, published on 12 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ESP-NOW Component provides a connectionless Wi-Fi communication protocol. An replay attacks vulnerability was discovered in the implementation of the ESP-NOW because the caches is not differentiated by message types, it is a single, shared resource for all kinds of messages, whether they are broadcast or unicast, and regardless of whether they are ciphertext or plaintext. This can result an attacker to clear the cache of its legitimate entries, there by creating an opportunity to re-inject previously captured packets. This vulnerability is fixed in 2.5.2.
Which versions are affected by CVE-2024-42483?
It affects 1 product.
Products include Espressif Esp-Now.
How do I fix CVE-2024-42483?
No fix has been published for CVE-2024-42483 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-42483 being exploited?
There is no known exploitation of CVE-2024-42483 in the wild and no public exploit code.
Sources
Also known as GHSA-wf6q-c2xr-77xj.