CVE-2021-25369 is classified as an improper access control vulnerability in the sec_log file of Samsung Android devices prior to SMR MAR-2021 Release 1. This vulnerability allows unauthorized exposure of sensitive kernel information to user space, representing a significant risk to affected devices. The CVSS score of 6.2 indicates a medium severity level, emphasizing the need for organizations to prioritize remediation efforts.
The risk to organizations includes potential unauthorized access to sensitive kernel data, which could lead to further exploitation or data breaches. Although no public exploit has been confirmed, the existence of this vulnerability in widely used devices necessitates immediate attention due to the potential impact on user privacy and system integrity.
Organizations should prioritize patching CVE-2021-25369 immediately, as Samsung has provided remediation instructions. The vulnerability's classification and the details surrounding its exposure highlight the importance of maintaining up-to-date security practices in managing mobile devices.
Given that this vulnerability has been added to the Known Exploited Vulnerabilities (KEV) catalog, organizations must remain vigilant and ensure timely updates to mitigate the associated risks effectively.
Vulnerability Details
The official CVE description states that this vulnerability allows improper access control in the sec_log file, exposing sensitive kernel information to userspace. The vulnerability is rated with a CVSS score of 6.2, indicating medium severity, and is classified under CWE-200, which pertains to Information Exposure.
Affected products include various Samsung Android versions, particularly those running versions 8.0 to 10.0 prior to the SMR MAR-2021 Release 1. The publication date of this vulnerability was March 26, 2021.
Technical Analysis
The root cause of CVE-2021-25369 is the improper access control in the sec_log file, which fails to restrict access to sensitive kernel information. This vulnerability can be exploited locally, with low complexity and without requiring user interaction. Attackers with no privileges can potentially exploit this vulnerability, leading to a high confidentiality impact while having no integrity or availability impact.
Given the low attack complexity and the lack of privileges required, this vulnerability poses a significant threat if left unremediated.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2021-25369 is considerable, especially in environments where Samsung Android devices are prevalent. Organizations that fail to address this vulnerability may face unauthorized access to sensitive kernel data, jeopardizing user privacy and potentially allowing further malicious activities.
The blast radius of this vulnerability is significant, given the widespread use of Samsung devices across various sectors. Prioritizing remediation is essential, especially considering the vulnerability's inclusion in the KEV catalog, indicating known exploitation risks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
All versions of Samsung Android prior to the SMR MAR-2021 Release 1 are affected by this vulnerability. Detailed information regarding specific vulnerable versions can be referenced in the CVE description.
Mitigation & Remediation
Organizations should apply updates as instructed by Samsung to mitigate this vulnerability effectively. Regularly updating devices and implementing strict access controls can help prevent similar vulnerabilities in the future. For more information on best practices, consider reviewing our guide on penetration testing to validate security measures.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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