CVE-2022-38698 : Security Advisory and Response

A missing permission check in the messaging service can lead to an elevation of privilege in the contacts service, requiring no additional execution privileges.

Understanding CVE-2022-38698

This CVE-2022-38698 vulnerability affects Unisoc (Shanghai) Technologies Co., Ltd.'s SC9863A, SC9832E, SC7731E, T610, T310, T606, T760, T610, T618, T606, T612, T616, T760, T770, T820, and S8000 products running on Android10, Android11, and Android12.

What is CVE-2022-38698?

In the messaging service, a missing permission check allows an attacker to elevate privileges in the contacts service without the need for extra execution privileges.

The Impact of CVE-2022-38698

Exploitation of this vulnerability could result in unauthorized access to sensitive user information through the contacts service on affected devices.

Technical Details of CVE-2022-38698

Vulnerability Description

The vulnerability arises from the lack of a permission check in the messaging service, facilitating an unauthorized elevation of privilege in the contacts service.

Affected Systems and Versions

Unisoc products including SC9863A, SC9832E, SC7731E, T610, T310, T606, T760, T610, T618, T606, T612, T616, T760, T770, T820, and S8000 running on Android10/Android11/Android12 versions are vulnerable to this exploit.

Exploitation Mechanism

Attackers can exploit the vulnerability to gain elevated privileges in the contacts service, potentially accessing sensitive user data without requiring additional execution privileges.

Mitigation and Prevention

Immediate Steps to Take

Users are advised to apply security patches provided by Unisoc promptly to mitigate the risk of exploitation. It is crucial to update to the latest firmware to address this vulnerability.

Long-Term Security Practices

To enhance overall device security, users should follow best practices such as avoiding suspicious links, downloading apps only from trusted sources, and regularly updating their devices.

Patching and Updates

Regularly check for security updates from Unisoc and ensure that devices are up to date with the latest patches to prevent potential security breaches.