CVE-2021-0583 : Security Advisory and Response

BluetoothPairingDialog in Android versions 9 and 10 may allow unauthorized enabling of Bluetooth without user consent, leading to a local privilege escalation exploit. User interaction is required for successful exploitation.

Understanding CVE-2021-0583

This CVE impacts the Android operating system, specifically versions 9 and 10, by facilitating a local privilege escalation attack through BluetoothPairingDialog.

What is CVE-2021-0583?

CVE-2021-0583 involves a vulnerability in the onCreate function of BluetoothPairingDialog in Android. This flaw allows an attacker to enable Bluetooth without user consent, potentially leading to the escalation of privileges locally.

The Impact of CVE-2021-0583

The impact of this CVE is the potential escalation of privileges on the affected Android devices running versions 9 and 10. A successful exploit could grant an attacker elevated privileges without proper user consent.

Technical Details of CVE-2021-0583

The technical details of this CVE include a description of the vulnerability, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability lies in the onCreate function of BluetoothPairingDialog, allowing for unauthorized Bluetooth activation without user consent, paving the way for local privilege escalation.

Affected Systems and Versions

Android versions 9 and 10 are affected by this vulnerability, requiring user interaction to successfully exploit the privilege escalation issue.

Exploitation Mechanism

The exploitation of CVE-2021-0583 involves a tapjacking or overlay attack that tricks the user into enabling Bluetooth without their explicit permission, thus enabling the privilege escalation.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-0583, immediate steps should be taken, and long-term security measures should be implemented to prevent such exploits in the future.

Immediate Steps to Take

Users are advised to be cautious when interacting with BluetoothPairingDialog and to ensure that Bluetooth is enabled only when necessary to avoid unintended privilege escalation.

Long-Term Security Practices

Long-term security practices should include regular software updates, security patches, and staying informed about the latest security advisories from Android.

Patching and Updates

It is crucial for users to apply official patches and updates provided by Android to address CVE-2021-0583 and other known vulnerabilities.