CVE-2021-25354 : Exploit Details and Defense Strategies
Understand CVE-2021-25354, an improper input check vulnerability in Samsung Internet prior to 13.2.1.46. Learn about its impact, affected systems, and mitigation steps.
A detailed overview of CVE-2021-25354, covering its description, impact, technical details, and mitigation steps.
Understanding CVE-2021-25354
CVE-2021-25354 is a vulnerability in Samsung Internet that allows attackers to trigger non-exported activities in Samsung Browser via malicious deeplinks.
What is CVE-2021-25354?
CVE-2021-25354 involves an improper input check in Samsung Internet versions prior to 13.2.1.46, enabling malicious actors to initiate hidden activities within Samsung Browser.
The Impact of CVE-2021-25354
With a CVSS base score of 3.3 (Low), this vulnerability poses a low-severity risk, requiring user interaction for exploitation. It does not affect confidentiality, integrity, or require special privileges.
Technical Details of CVE-2021-25354
A discussion on the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The flaw stems from a lack of proper input validation in Samsung Internet, allowing attackers to exploit deeplinks to execute hidden actions within Samsung Browser.
Affected Systems and Versions
The vulnerability impacts Samsung Internet versions below 13.2.1.46, particularly affecting users of this browser software.
Exploitation Mechanism
Attackers can leverage malicious deeplinks to launch non-exported activities within Samsung Browser, compromising user security and privacy.
Mitigation and Prevention
Guidance on immediate steps to take, long-term security practices, and the importance of patching and updates.
Immediate Steps to Take
Users should update Samsung Internet to version 13.2.1.46 or newer to mitigate the vulnerability. Avoid clicking on unfamiliar links or deeplinks to prevent exploitation.
Long-Term Security Practices
Maintain awareness of security risks associated with deeplinks and regularly update browsers and devices to the latest software versions to prevent such vulnerabilities.
Patching and Updates
Regularly check for and apply security patches and updates provided by Samsung Mobile to ensure protection against known security issues.