Replay Attack Affecting espressif/esp-now package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ESPRESSIFESPNOW-7945501
- published13 Sept 2024
- disclosed12 Sept 2024
- creditNozomi Networks Labs
Introduced: 12 Sep 2024
CVE-2024-42483 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Replay Attack due to the shared cache mechanism. An attacker can disrupt legitimate communications and inject old or malicious packets by clearing the cache of its legitimate entries and re-injecting previously captured packets.
Note:
According to the maintainers, the fix is not a 100% reliable solution, as an attacker with more effort can still replay old ciphertext. but considering the connectionless nature of ESP-NOW, it's "good enough" for now.