CVE-2022-20223 : Security Advisory and Response
Uncover details of CVE-2022-20223 impacting Android OS. Learn about local privilege escalation risk due to unauthorized phone call initiation without permissions.
A vulnerability has been identified in the Android operating system that could allow an attacker to escalate privileges locally without requiring additional execution privileges. This could result in unauthorized phone call initiation without proper permissions, posing a risk of privilege escalation.
Understanding CVE-2022-20223
This section delves into the details of the CVE-2022-20223 vulnerability found in the Android OS.
What is CVE-2022-20223?
The CVE-2022-20223 vulnerability exists in the assertSafeToStartCustomActivity function of AppRestrictionsFragment.java. It enables an attacker to initiate a phone call without the necessary permissions, exploiting a confused deputy scenario.
The Impact of CVE-2022-20223
The exploitation of this vulnerability could lead to a local elevation of privilege, allowing an attacker to escalate their privileges within the system without requiring additional execution rights. This can be achieved without user interaction.
Technical Details of CVE-2022-20223
Explore the technical aspects of CVE-2022-20223 to understand its implications further.
Vulnerability Description
The vulnerability in assertSafeToStartCustomActivity of AppRestrictionsFragment.java allows unauthorized initiation of phone calls, leading to potential privilege escalation within the Android system.
Affected Systems and Versions
The affected products include Android versions 10, 11, 12, and 12L, leaving these systems susceptible to the privilege escalation exploit.
Exploitation Mechanism
Exploiting the confused deputy scenario in assertSafeToStartCustomActivity enables an attacker to bypass permission requirements and start phone calls without authorization.
Mitigation and Prevention
Discover the steps to mitigate the risks posed by CVE-2022-20223 and safeguard your systems against such vulnerabilities.
Immediate Steps to Take
It is crucial to apply security patches promptly to address the CVE-2022-20223 vulnerability and prevent potential privilege escalation attacks.
Long-Term Security Practices
Implement robust security practices, such as regular security audits and code reviews, to detect and mitigate similar privilege escalation issues in the future.
Patching and Updates
Stay informed about security updates from Android and promptly install patches to protect your systems from known vulnerabilities.