CVE-2020-13599 : Exploit Details and Defense Strategies

Zephyr versions 1.14.2 and 2.3.0 are affected by a security problem related to settings and littlefs, resulting in Incorrect Default Permissions (CWE-276).

Understanding CVE-2020-13599

This CVE involves a security issue in Zephyr versions that can lead to potential vulnerabilities.

What is CVE-2020-13599?

CVE-2020-13599 is a vulnerability in Zephyr versions 1.14.2 and 2.3.0 that allows for Incorrect Default Permissions, potentially exposing systems to security risks.

The Impact of CVE-2020-13599

The impact of this CVE is rated as LOW severity, with a CVSS base score of 3.3. It requires user interaction and has low confidentiality impact.

Technical Details of CVE-2020-13599

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability involves Incorrect Default Permissions (CWE-276) in Zephyr versions 1.14.2 and 2.3.0, affecting settings and littlefs.

Affected Systems and Versions

Product: Zephyr
Vendor: Zephyrproject-rtos
Versions: 1.14.2, 2.3.0

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Scope: Unchanged

Mitigation and Prevention

Protecting systems from CVE-2020-13599 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Zephyr versions to patched releases.
Monitor vendor security advisories for updates.

Long-Term Security Practices

Regularly review and update permissions settings.
Implement secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Apply patches provided by Zephyrproject-rtos.
Stay informed about security best practices and updates.