CVE-2019-12587 Weak cryptography in n/a

High 8.1 Published 4 Sep 2019 Updated 4 Aug 2024

Attackers can install a zero Pairwise Master Key in ESP-IDF, allowing them to replay, decrypt, or spoof network frames via a rogue access point.

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-2019-12587?

CVE-2019-12587 is a high-severity vulnerability in n/a, published on 4 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The EAP peer implementation in Espressif ESP-IDF 2.0.0 through 4.0.0 and ESP8266_NONOS_SDK 2.2.0 through 3.1.0 allows the installation of a zero Pairwise Master Key (PMK) after the completion of any EAP authentication method, which allows attackers in radio range to replay, decrypt, or spoof frames via a rogue access point.

Weakness: CWE-327

Which versions are affected by CVE-2019-12587?

It affects 2 products.

Products include Espressif Esp-Idf, Espressif Esp8266 Nonos Sdk.

How do I fix CVE-2019-12587?

No fix has been published for CVE-2019-12587 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-12587 being exploited?

There is no known exploitation of CVE-2019-12587 in the wild and no public exploit code.

Sources

Also known as GHSA-7ff7-896h-mmfv.