CVE-2023-2747 : Vulnerability Insights and Analysis

This CVE-2023-2747 was published on June 15, 2023, by Silabs. It involves the issue of an uninitialized initialization vector (IV) in Silicon Labs Secure Engine (SE) firmware versions 2.0.0 through 2.2.1, impacting the encryption of data stored in the SE flash memory.

Understanding CVE-2023-2747

This section delves into the details of what CVE-2023-2747 entails, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-2747?

The vulnerability in CVE-2023-2747 arises from the uninitialized IV utilized by the SE for encrypting data stored in the SE flash memory. This oversight can lead to potential security breaches and unauthorized access to sensitive information.

The Impact of CVE-2023-2747

The impact of this vulnerability is classified under CAPEC-114 - Authentication Abuse. With a CVSS base score of 3.1, the severity is rated as low. The confidentiality, integrity, and availability of affected systems are all at risk due to this vulnerability.

Technical Details of CVE-2023-2747

In this section, we explore the technical aspects of CVE-2023-2747 including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from the uninitialized IV in the SE firmware, leading to potential exploitation by malicious actors to gain unauthorized access to encrypted data within the SE flash memory.

Affected Systems and Versions

Silicon Labs' GSDK products with firmware versions ranging from 2.0.0 to 2.2.1 are impacted by this vulnerability. Systems running these versions are at risk of unauthorized access and data compromise.

Exploitation Mechanism

The exploitation of this vulnerability involves leveraging the uninitialized IV in the SE firmware to decrypt and access sensitive data stored within the SE flash memory. Malicious actors can potentially exploit this weakness to compromise the confidentiality and integrity of the encrypted data.

Mitigation and Prevention

Mitigating CVE-2023-2747 requires immediate action to secure affected systems and prevent potential unauthorized access and data breaches.

Immediate Steps to Take

Update to the latest SE firmware version: Users are advised to update their Silicon Labs SE firmware to a secure version that addresses the uninitialized IV vulnerability.

Long-Term Security Practices

Regular Security Audits: Conduct routine security audits to identify and address any potential vulnerabilities in the firmware or encryption processes.

Patching and Updates

Stay Informed: Stay updated with security advisories from Silicon Labs and apply patches promptly to mitigate known vulnerabilities and enhance system security.