CVE-2022-20093 : Security Advisory and Response

A vulnerability in telephony services provided by MediaTek could allow an attacker to disable SMS message reception, leading to a local privilege escalation without requiring additional privileges or user interaction.

Understanding CVE-2022-20093

This CVE identifies a security issue in MediaTek's telephony services that could be exploited for privilege escalation.

What is CVE-2022-20093?

The vulnerability in telephony services could potentially disable SMS message reception, enabling a local privilege escalation attack without the need for additional execution privileges or user interaction.

The Impact of CVE-2022-20093

Exploitation of this vulnerability could result in unauthorized access and potential misuse of device features.

Technical Details of CVE-2022-20093

This section delves into specific technical details about the vulnerability.

Vulnerability Description

The flaw arises from a missing permission check in telephony services, allowing attackers to disable SMS message reception and escalate privileges locally.

Affected Systems and Versions

The vulnerability affects devices running Android versions 10.0, 11.0, and 12.0 with specific MediaTek processors listed in the description.

Exploitation Mechanism

Attackers can exploit this vulnerability without requiring any user interaction, potentially leading to unauthorized privilege escalation.

Mitigation and Prevention

Safeguarding strategies to mitigate and prevent the exploitation of CVE-2022-20093.

Immediate Steps to Take

Users are advised to apply the provided patch ID (ALPS06498868) to address the vulnerability immediately.

Long-Term Security Practices

Adopting robust security practices and regularly updating devices can help prevent similar vulnerabilities in the future.

Patching and Updates

Ensure regular security updates from MediaTek and implement patches promptly to maintain device security.