CVE-2017-0491 Explained : Impact and Mitigation

Android Package Manager vulnerability affecting versions 4.4.4 to 7.1.1 allows local apps to hinder app removal and permission revocation.

Understanding CVE-2017-0491

A vulnerability in Android's Package Manager can be exploited by local malicious apps to interfere with the removal of apps or permission revocation without user interaction.

What is CVE-2017-0491?

The vulnerability allows a local app to bypass user interaction requirements, impacting Android versions 4.4.4 to 7.1.1.

The Impact of CVE-2017-0491

Considered moderate, it enables elevation of privilege, potentially hindering user control over app management.

Technical Details of CVE-2017-0491

Android Package Manager vulnerability details.

Vulnerability Description

An elevation of privilege issue in Package Manager affecting Android versions 4.4.4 to 7.1.1.

Affected Systems and Versions

Android versions 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, and 7.1.1.

Exploitation Mechanism

Malicious local applications can exploit the vulnerability to interfere with app removal and permission management.

Mitigation and Prevention

Steps to mitigate and prevent CVE-2017-0491.

Immediate Steps to Take

Regularly monitor app permissions and installations on Android devices.
Avoid downloading apps from untrusted sources.
Update Android devices to the latest security patches.

Long-Term Security Practices

Implement app whitelisting and blacklisting policies.
Educate users on safe app usage practices.

Patching and Updates

Apply security updates provided by Google for Android devices to address the vulnerability.