CVE-2021-25520 : What You Need to Know
Discover the details of CVE-2021-25520, a critical vulnerability in Samsung Internet allowing untrusted applications to execute script codes. Learn about the impact and mitigation steps.
A critical vulnerability (CVE-2021-25520) has been identified in Samsung Internet prior to version 16.0.2. This vulnerability could allow untrusted applications to execute script codes in Samsung Internet, posing a significant security risk.
Understanding CVE-2021-25520
This section delves into the details of the CVE-2021-25520 vulnerability.
What is CVE-2021-25520?
The vulnerability lies in the insecure caller check and input validation vulnerabilities in SearchKeyword deeplink logic before Samsung Internet version 16.0.2. It enables untrusted applications to run script codes within Samsung Internet.
The Impact of CVE-2021-25520
With a CVSS base score of 5.9 (Medium Severity), this vulnerability could compromise the confidentiality, integrity, and availability of impacted systems. The attack complexity is low, and an attacker with local access can exploit it.
Technical Details of CVE-2021-25520
This section provides more insights into the technical aspects of CVE-2021-25520.
Vulnerability Description
The vulnerability stems from improper input validation, specifically in the SearchKeyword deeplink logic of Samsung Internet versions before 16.0.2.
Affected Systems and Versions
The vulnerability affects Samsung Internet versions prior to 16.0.2. Users with these versions are at risk of exploitation.
Exploitation Mechanism
Untrusted applications can abuse the insecure caller check and input validation vulnerabilities to execute script codes within Samsung Internet.
Mitigation and Prevention
Protecting systems from CVE-2021-25520 is critical to maintaining a secure environment.
Immediate Steps to Take
Users should update Samsung Internet to version 16.0.2 or higher immediately to mitigate the risk of exploitation. Avoid downloading and running untrusted applications to prevent potential attacks.
Long-Term Security Practices
Practicing secure coding, implementing input validation mechanisms, and regularly updating software can enhance overall security posture.
Patching and Updates
Stay informed about security updates from Samsung Mobile and promptly install patches to address known vulnerabilities.