CVE-2019-12587 : Vulnerability Insights and Analysis
Learn about CVE-2019-12587 affecting Espressif ESP-IDF and ESP8266_NONOS_SDK versions, enabling attackers to exploit a zero Pairwise Master Key vulnerability. Find mitigation steps and prevention measures here.
Espressif ESP-IDF versions 2.0.0 through 4.0.0 and ESP8266_NONOS_SDK versions 2.2.0 through 3.1.0 have a vulnerability in their EAP peer implementation that allows for the installation of a zero Pairwise Master Key (PMK) after EAP authentication, enabling malicious actors to exploit the flaw.
Understanding CVE-2019-12587
This CVE identifies a security vulnerability in Espressif's ESP-IDF and ESP8266_NONOS_SDK that could be exploited by attackers within radio range.
What is CVE-2019-12587?
The vulnerability in the EAP peer implementation of Espressif ESP-IDF and ESP8266_NONOS_SDK versions allows for the installation of a zero PMK post EAP authentication, enabling malicious activities through a rogue access point.
The Impact of CVE-2019-12587
Malicious actors within radio range can exploit this vulnerability to replay, decrypt, or manipulate frames through a rogue access point, potentially leading to unauthorized access or data interception.
Technical Details of CVE-2019-12587
Espressif ESP-IDF and ESP8266_NONOS_SDK versions are affected by this vulnerability.
Vulnerability Description
The flaw allows the installation of a zero PMK after any EAP authentication method, providing an opportunity for attackers within radio range to carry out malicious activities.
Affected Systems and Versions
- Espressif ESP-IDF versions 2.0.0 through 4.0.0
- ESP8266_NONOS_SDK versions 2.2.0 through 3.1.0
Exploitation Mechanism
Attackers within radio range can exploit the vulnerability to replay, decrypt, or manipulate frames through a rogue access point, compromising network security.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.
Immediate Steps to Take
- Update to the latest versions of ESP-IDF and ESP8266_NONOS_SDK to patch the vulnerability.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Implement strong encryption protocols and secure authentication methods.
- Regularly update and patch software to mitigate potential vulnerabilities.
Patching and Updates
- Apply security patches provided by Espressif promptly to address the vulnerability and enhance system security.