CVE-2023-42645 : What You Need to Know

This article provides detailed information about CVE-2023-42645, including its description, impact, technical details, and mitigation steps.

Understanding CVE-2023-42645

CVE-2023-42645 is a vulnerability that affects the sim service, potentially allowing an app to write permission usage records without proper permission checks. This could result in local information disclosure without requiring additional execution privileges.

What is CVE-2023-42645?

The vulnerability in the sim service allows unauthorized writing of permission usage records by an app, leading to potential local information disclosure.

The Impact of CVE-2023-42645

The impact of CVE-2023-42645 is the potential disclosure of local information due to the missing permission check, posing a risk to user privacy and data security.

Technical Details of CVE-2023-42645

This section covers the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in the sim service allows an app to manipulate permission usage records without proper checks, potentially leading to unauthorized access and information disclosure.

Affected Systems and Versions

The vulnerability affects Unisoc's T760, T770, T820, and S8000 products running on Android 11, provided by Unisoc (Shanghai) Technologies Co., Ltd.

Exploitation Mechanism

Exploiting CVE-2023-42645 involves taking advantage of the lack of permission checks in the sim service to write permission usage records and obtain sensitive local information.

Mitigation and Prevention

Protecting systems from CVE-2023-42645 requires immediate steps, long-term security practices, and timely patching and updates.

Immediate Steps to Take

Users should be cautious when granting permissions to apps and consider limiting access to sensitive information to mitigate the risk of local information disclosure.

Long-Term Security Practices

Implementing secure coding practices, regular security assessments, and monitoring app permissions can enhance long-term security and prevent similar vulnerabilities.

Patching and Updates

Vendors should release patches promptly to address the vulnerability in the sim service and ensure that affected systems receive necessary updates and fixes.