CVE-2017-0420 : What You Need to Know
Learn about CVE-2017-0420, an Android vulnerability in AOSP Mail allowing local malicious apps to access unauthorized data. Find mitigation steps and patching advice here.
A security flaw in AOSP Mail affecting Android versions 4.4.4 to 7.1.1 allows local malicious apps to bypass security measures, potentially leading to unauthorized data access.
Understanding CVE-2017-0420
What is CVE-2017-0420?
This CVE identifies an information disclosure vulnerability in AOSP Mail that could be exploited by a local malicious app to circumvent Android's data isolation protections.
The Impact of CVE-2017-0420
The vulnerability is classified as High due to the risk of unauthorized access to sensitive data that the app should not have.
Technical Details of CVE-2017-0420
Vulnerability Description
The flaw in AOSP Mail allows a local malicious app to breach the OS security, potentially accessing data beyond its permissions.
Affected Systems and Versions
- Product: Android
- Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1
Exploitation Mechanism
The vulnerability enables a local malicious app to bypass Android's security measures, potentially leading to unauthorized data access.
Mitigation and Prevention
Immediate Steps to Take
- Regularly update Android devices to the latest security patches
- Avoid downloading apps from untrusted sources
- Monitor app permissions and restrict unnecessary access
Long-Term Security Practices
- Implement app sandboxing to isolate app data
- Conduct regular security audits and penetration testing
Patching and Updates
Apply security patches provided by Google for Android to address the vulnerability.