SB2021110912 - Multiple vulnerabilities in Microsoft Azure Sphere

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2021-41374)

The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Azure Sphere. A local attacker can gain unauthorized access to sensitive information on the system.

2) Information disclosure (CVE-ID: CVE-2021-41375)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Azure Sphere. A local administrator can gain unauthorized access to sensitive information on the system.

3) Information disclosure (CVE-ID: CVE-2021-41376)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Azure Sphere. A local administrator can gain unauthorized access to sensitive information on the system.

4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-42300)

The vulnerability allows a local administrator to escalate privileges on the system.

The vulnerability exists due to a tampering issue in Azure Sphere, which leads to security restrictions bypass and privilege escalation.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41374
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41375
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41376
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42300