CVE-2020-26144 : Exploit Details and Defense Strategies

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices where the WEP, WPA, WPA2, and WPA3 implementations accept plaintext A-MSDU frames, allowing an adversary to inject arbitrary network packets.

Understanding CVE-2020-26144

This CVE identifies a vulnerability in the Wi-Fi security implementations on Samsung Galaxy S3 i9305 4.4.4 devices.

What is CVE-2020-26144?

The vulnerability allows attackers to inject arbitrary network packets by exploiting the acceptance of plaintext A-MSDU frames in Wi-Fi security protocols.

The Impact of CVE-2020-26144

This vulnerability can be exploited by adversaries to manipulate network traffic, potentially leading to unauthorized access or data interception.

Technical Details of CVE-2020-26144

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The issue arises from the acceptance of plaintext A-MSDU frames in Wi-Fi security protocols, enabling attackers to inject malicious network packets.

Affected Systems and Versions

Affected System: Samsung Galaxy S3 i9305 4.4.4 devices
Affected Versions: All versions

Exploitation Mechanism

Attackers can abuse the vulnerability by crafting and injecting arbitrary network packets, bypassing network security configurations.

Mitigation and Prevention

Protecting systems from CVE-2020-26144 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable Wi-Fi on affected devices if not essential
Implement network segmentation to isolate vulnerable devices
Monitor network traffic for any suspicious activities

Long-Term Security Practices

Regularly update device firmware and security patches
Use strong encryption protocols for Wi-Fi communications
Conduct security audits and penetration testing to identify vulnerabilities

Patching and Updates

Apply security patches provided by Samsung for the affected devices
Stay informed about security advisories and updates from relevant vendors