CVE-2020-27301 Explained : Impact and Mitigation

This CVE involves a stack buffer overflow in Realtek RTL8710 and other Ameba-based devices, potentially leading to remote code execution through a specific function.

Understanding CVE-2020-27301

This vulnerability allows attackers within Wi-Fi range to exploit a flaw in the AES_UnWRAP function during the WPA2 4-way handshake.

What is CVE-2020-27301?

A stack buffer overflow in Realtek RTL8710 and Ameba-based devices can result in remote code execution when a crafted 'Encrypted GTK' value is sent during the WPA2 handshake.

The Impact of CVE-2020-27301

The vulnerability can be exploited by attackers within Wi-Fi range, potentially leading to remote code execution on affected devices.

Technical Details of CVE-2020-27301

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The stack buffer overflow in Realtek RTL8710 and Ameba-based devices allows attackers to execute remote code by manipulating the 'Encrypted GTK' value.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers exploit the vulnerability by sending a crafted 'Encrypted GTK' value during the WPA2 4-way handshake.

Mitigation and Prevention

Protecting systems from CVE-2020-27301 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor patches promptly.
Monitor network traffic for any suspicious activity.
Implement network segmentation to limit the attack surface.

Long-Term Security Practices

Regularly update firmware and software.
Conduct security assessments and penetration testing.
Educate users on secure Wi-Fi practices.

Patching and Updates

Ensure all devices are updated with the latest patches and security fixes to mitigate the risk of exploitation.