CVE-2021-25466 Explained : Impact and Mitigation

A vulnerability in Samsung Internet prior to version 15.0.2.47 could allow attackers to execute a Man-in-the-middle attack and acquire Samsung Account tokens.

Understanding CVE-2021-25466

This vulnerability, assigned CVE-2021-25466, pertains to an improper scheme check vulnerability in Samsung Internet.

What is CVE-2021-25466?

The CVE-2021-25466 vulnerability exists in Samsung Internet versions prior to 15.0.2.47, enabling attackers to conduct Man-in-the-middle attacks and retrieve Samsung Account tokens.

The Impact of CVE-2021-25466

This vulnerability could result in a high impact on the confidentiality of user data, allowing attackers to intercept sensitive information through Man-in-the-middle attacks.

Technical Details of CVE-2021-25466

The vulnerability is scored 6.5 (Medium) on the CVSSv3.1 base score. It requires low attack complexity and has an adjacent network attack vector. No user interactions or privileges are needed for exploitation.

Vulnerability Description

The vulnerability arises from an improper scheme check in Samsung Internet, leaving systems vulnerable to Man-in-the-middle attacks.

Affected Systems and Versions

The affected product is Samsung Internet by Samsung Mobile, with versions less than 15.0.2.47 being impacted.

Exploitation Mechanism

Attackers can exploit this vulnerability to intercept Samsung Account tokens by executing Man-in-the-middle attacks.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-25466, immediate action must be taken to safeguard user data.

Immediate Steps to Take

Users should update Samsung Internet to version 15.0.2.47 or higher to prevent exploitation of this vulnerability.

Long-Term Security Practices

Regularly updating software, using secure networks, and implementing encryption protocols are essential for long-term security.

Patching and Updates

Users are advised to regularly check for security patches and updates from Samsung Mobile to address known vulnerabilities.