CVE-2021-39618 : Security Advisory and Response

This CVE-2021-39618 article provides insights into a vulnerability in Android that could result in a local escalation of privilege without user consent.

Understanding CVE-2021-39618

This section will delve into the details of the identified vulnerability.

What is CVE-2021-39618?

The vulnerability lies in multiple methods of EuiccNotificationManager.java in Android, enabling the installation of existing packages without user consent. This flaw could potentially lead to a local elevation of privilege, requiring User execution privileges without the need for user interaction.

The Impact of CVE-2021-39618

The impact of this vulnerability could allow attackers to locally escalate privileges without the user's consent.

Technical Details of CVE-2021-39618

This section will provide technical specifics associated with CVE-2021-39618.

Vulnerability Description

The vulnerability in EuiccNotificationManager.java permits the installation of packages without user consent, potentially leading to privilege escalation.

Affected Systems and Versions

Product: Android
Versions: Android-10, Android-11, Android-12, Android-9

Exploitation Mechanism

The unsafe PendingIntent in EuiccNotificationManager.java can be exploited to install packages without requiring user consent.

Mitigation and Prevention

Explore the necessary steps to mitigate and prevent exploitation of this vulnerability.

Immediate Steps to Take

Apply relevant security patches promptly.
Monitor for any unauthorized package installations.
Keep systems up to date with the latest security measures.

Long-Term Security Practices

Regularly review and enhance Android security mechanisms.
Implement secure coding practices to prevent unauthorized installations.

Patching and Updates

Ensure timely installation of security patches provided by Android to address this vulnerability.