CVE-2023-42674 : Exploit Details and Defense Strategies

A detailed analysis of CVE-2023-42674 focusing on the vulnerability, impact, technical details, and mitigation strategies.

Understanding CVE-2023-42674

CVE-2023-42674 is a security vulnerability discovered in Unisoc's SC7731E/SC9832E/SC9863A/T310/T606/T612/T616/T610/T618/T760/T770/T820/S8000 products running Android11/Android12/Android13. This vulnerability allows unauthorized write permission usage records of an app, potentially leading to local information disclosure.

What is CVE-2023-42674?

CVE-2023-42674 involves an issue in the imsservice where a missing permission check enables the writing of permission usage records of an app. Attackers could exploit this to disclose local information without requiring additional execution privileges.

The Impact of CVE-2023-42674

The impact of CVE-2023-42674 can result in unauthorized access to sensitive information stored on affected devices without the need for elevated permissions. This information disclosure could lead to privacy breaches and data compromise.

Technical Details of CVE-2023-42674

This section delves into the specifics of the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows malicious actors to manipulate permission usage records of an app due to the absence of a necessary permission check. By exploiting this flaw, attackers can access local information without requiring additional privileges.

Affected Systems and Versions

Unisoc's SC7731E/SC9832E/SC9863A/T310/T606/T612/T616/T610/T618/T760/T770/T820/S8000 products running Android11/Android12/Android13 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit CVE-2023-42674 by leveraging the missing permission check in the imsservice, enabling them to manipulate write permission usage records of apps and access local information.

Mitigation and Prevention

In this section, we explore the steps to mitigate the risks posed by CVE-2023-42674 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update their devices to the latest firmware or security patches provided by Unisoc. Additionally, exercise caution while granting permissions to apps and monitor for any suspicious activity.

Long-Term Security Practices

To enhance long-term security, users should regularly update their devices, be cautious when installing new apps, and employ reputable security solutions to detect and prevent unauthorized access.

Patching and Updates

Stay informed about security updates and patches released by Unisoc for the affected products. Timely installation of these patches is crucial to protect against potential exploitation of CVE-2023-42674.