CVE-2023-21443 : Security Advisory and Response

This CVE record pertains to an improper cryptographic implementation in Samsung Flow for Android prior to version 4.9.04. This vulnerability allows adjacent attackers to decrypt encrypted messages or inject commands.

Understanding CVE-2023-21443

This section will delve into the details of CVE-2023-21443, including its impact, technical description, affected systems, exploitation mechanism, and mitigation steps.

What is CVE-2023-21443?

CVE-2023-21443 involves an improper cryptographic implementation in Samsung Flow for Android, leading to potential decryption of encrypted messages and command injection by adjacent attackers.

The Impact of CVE-2023-21443

The impact of this vulnerability is significant, as it allows attackers in close proximity to potentially access sensitive information by decrypting encrypted messages or injecting malicious commands.

Technical Details of CVE-2023-21443

In this section, we'll explore the technical aspects of CVE-2023-21443, including vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Samsung Flow for Android prior to version 4.9.04 results from an improper cryptographic implementation, enabling adjacent attackers to exploit the weakness and decrypt encrypted communications or inject unauthorized commands.

Affected Systems and Versions

The affected system is Samsung Flow for Android with versions less than 4.9.04. Users utilizing versions prior to the mentioned build are at risk of falling victim to this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by being in close proximity to the target device running the susceptible version of Samsung Flow for Android. Through exploiting the inadequate cryptographic implementation, attackers can decrypt encrypted data or inject unauthorized commands.

Mitigation and Prevention

In this section, we'll discuss steps to address CVE-2023-21443, both in the short term and with long-term security practices.

Immediate Steps to Take

Users and organizations should promptly update Samsung Flow for Android to version 4.9.04 or above to mitigate the vulnerability and prevent potential unauthorized access to encrypted data or injection of commands.

Long-Term Security Practices

In the long term, it is essential to follow security best practices, such as regularly updating software, employing encryption with adequate strength, and maintaining awareness of potential vulnerabilities in applications and systems.

Patching and Updates

Staying vigilant about security updates and patches is crucial for addressing vulnerabilities like CVE-2023-21443. Timely installation of patches and updates provided by Samsung Mobile can help in safeguarding systems against potential exploitation of this cryptographic implementation flaw.