CVE-2021-25381 Explained : Impact and Mitigation
Learn about CVE-2021-25381 affecting Samsung Account in Android devices. Find out the impact, technical details, and mitigation steps for this vulnerability.
A vulnerability in Samsung Account affects Android devices running specific versions, allowing local attackers to perform unauthorized actions via hijacking the PendingIntent.
Understanding CVE-2021-25381
This CVE identifies an issue in Samsung Account that can be exploited by attackers to execute unauthorized actions on vulnerable devices.
What is CVE-2021-25381?
The vulnerability arises from the insecure use of PendingIntent in Samsung Account versions 10.8.0.4 and below for Android P(9.0), as well as 12.1.1.3 and above for Android Q(10.0). The flaw permits local attackers to carry out unauthorized actions by manipulating the PendingIntent.
The Impact of CVE-2021-25381
This vulnerability poses a medium-severity threat, with a CVSS base score of 5.5. Attackers with low privileges can exploit the issue to compromise the confidentiality of the device without requiring user interaction.
Technical Details of CVE-2021-25381
The following technical aspects outline the specifics of CVE-2021-25381:
Vulnerability Description
The vulnerability stems from the improper handling of PendingIntent in Samsung Account, enabling unauthorized actions by local attackers.
Affected Systems and Versions
Samsung Mobile's Android P(9.0) devices with version less than 10.8.0.4 and Android Q(10.0) devices with version less than 12.1.1.3 are impacted by this vulnerability.
Exploitation Mechanism
Local attackers can exploit the vulnerability by hijacking the PendingIntent in vulnerable Samsung Account versions, leading to unauthorized actions.
Mitigation and Prevention
Protecting against CVE-2021-25381 requires immediate steps and long-term security practices to ensure the safety of the affected systems.
Immediate Steps to Take
Users should update their Samsung Account to the latest secure versions to mitigate the vulnerability. Additionally, avoiding malicious links and unauthorized downloads can help prevent exploitation.
Long-Term Security Practices
Regularly updating the device software, utilizing security best practices, and being cautious of granting unnecessary app permissions can enhance the long-term security posture against such vulnerabilities.
Patching and Updates
Users should closely monitor security advisories from Samsung Mobile and promptly apply any patches or updates released to address CVE-2021-25381.