CVE-2021-25411 Explained : Impact and Mitigation
Learn about CVE-2021-25411, an improper address validation vulnerability in Samsung Mobile Devices pre-SMR JUN-2021. Understand the impact, affected systems, and mitigation steps.
A detailed overview of CVE-2021-25411 highlighting the vulnerability, its impact, technical details, and mitigation steps.
Understanding CVE-2021-25411
This section provides insights into the nature of the vulnerability and the affected systems.
What is CVE-2021-25411?
The CVE-2021-25411 vulnerability involves improper address validation in the RKP API before the SMR JUN-2021 Release 1. This flaw could be exploited by local attackers with root privileges to manipulate kernel memory.
The Impact of CVE-2021-25411
The vulnerability's impact is significant as it allows attackers to write to read-only kernel memory. It poses a severe security risk to Samsung Mobile Devices running specific versions.
Technical Details of CVE-2021-25411
Explore the technical aspects of the vulnerability, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper address validation in the RKP API before the SMR JUN-2021 Release 1, enabling attackers to modify kernel memory.
Affected Systems and Versions
Samsung Mobile Devices using Q(10.0) and R(11.0) with Exynos9610, 9810, 9820, 9830 processors before the SMR JUN-2021 Release 1 are vulnerable to this exploit.
Exploitation Mechanism
Local attackers with root privileges can leverage this vulnerability to write to read-only kernel memory, compromising the device's security.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks posed by CVE-2021-25411 and secure affected systems.
Immediate Steps to Take
Users should apply security patches and updates provided by Samsung Mobile to address the vulnerability promptly.
Long-Term Security Practices
Establishing robust security protocols, restricting root-level access, and implementing regular security updates can enhance the device's security posture.
Patching and Updates
Regularly monitor and apply security updates from Samsung Mobile to prevent exploitation of known vulnerabilities and maintain a secure environment.