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Azure RTOS USBX Remote Code Execution Vulnerability

High
rkolandaivel published GHSA-mwj9-rpph-v8wc Dec 3, 2023

Package

USBX (Azure RTOS)

Affected versions

<6.3.0

Patched versions

6.3.0

Description

Impact
An attacker can cause remote code execution due to out of bounds write vulnerabilities in Azure RTOS USBX.

Affected Components
The affected components include functions/processes in host and device classes, related to CDC ECM and RNDIS in RTOS v6.2.1 and below. The fixes have been included in USBX release 6.3.0.

Remediation
Upgrade to v6.3.0 or above.

For more information
If you have any questions or comments about this advisory:
• Open an issue in azure-rtos/usbx
• Post question on Microsoft Q&A

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Physical
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

CVE ID

CVE-2023-48695

Weaknesses