CVE-2019-15421 Explained : Impact and Mitigation
Learn about CVE-2019-15421 affecting Blackview BV7000_Pro Android devices. Unauthorized wireless settings modification vulnerability allows any app on the device to access and alter settings.
The Blackview BV7000_Pro Android device is vulnerable to unauthorized modification of wireless settings through a specific pre-installed application.
Understanding CVE-2019-15421
What is CVE-2019-15421?
The Blackview BV7000_Pro Android device with a particular build fingerprint contains a pre-installed application that allows unauthorized modification of wireless settings through a confused deputy attack.
The Impact of CVE-2019-15421
The vulnerability enables any application on the device to access and modify wireless settings without proper authorization.
Technical Details of CVE-2019-15421
Vulnerability Description
The device's pre-installed com.mediatek.factorymode app (versionCode=1, versionName=1) permits unauthorized wireless settings modification.
Affected Systems and Versions
- Product: Blackview BV7000_Pro
- Vendor: Blackview
- Version: Not applicable
Exploitation Mechanism
The vulnerability allows any application co-located on the device to exploit the confused deputy attack and modify wireless settings.
Mitigation and Prevention
Immediate Steps to Take
- Disable or uninstall the com.mediatek.factorymode app if possible.
- Regularly monitor and restrict app permissions on the device.
Long-Term Security Practices
- Keep the device's software up to date to patch known vulnerabilities.
- Avoid installing apps from untrusted sources to minimize security risks.
- Implement network security measures to prevent unauthorized access to wireless settings.
Patching and Updates
Apply security patches provided by the device manufacturer to address the vulnerability.