CVE-2025-40819

-- PoC: Bypass license restrictions by modifying system_ticketinfo table -- Requires database write access (e.g., via SQL injection or compromised credentials) -- Step 1: Identify current license configuration SELECT * FROM system_ticketinfo WHERE id = 1; -- Step 2: Modify license restrictions to bypass limits UPDATE system_ticketinfo SET max_connections = 99999, ticket_count = 99999, expiration_date = '2099-12-31 23:59:59', license_type = 'ENTERPRISE', features_enabled = '*' WHERE id = 1; -- Step 3: Verify changes SELECT * FROM system_ticketinfo WHERE id = 1; -- Step 4: Trigger license revalidation (restart service or access protected endpoint) -- After this, the application will use the modified license data -- Cleanup (restore original values): -- UPDATE system_ticketinfo SET ... WHERE id = 1 AND original_checksum = '...'; -- Note: This PoC demonstrates the vulnerability concept. Actual exploitation -- requires valid database credentials or SQL injection point in the application.

{"cve": {"id": "CVE-2025-40819", "sourceIdentifier": "[email protected]", "published": "2025-12-09T16:17:46.223", "lastModified": "2025-12-10T21:42:00.563", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.2 SP4). Affected applications do not properly validate license restrictions against the database, allowing direct modification of the system_ticketinfo table to bypass license limitations without proper enforcement checks. This could allow with database access to circumvent licensing restrictions by directly modifying database values and potentially enabling unauthorized use beyond the permitted scope."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-863"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.2", "matchCriteriaId": "BA2839E7-E397-4D69-865B-439F0017D540"}, {"vulnerable": true, "criteria": "cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp1:*:*:*:*:*:*", "matchCriteriaId": "A5A387A4-6899-4756-9EAA-ADBC636F8CF4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp2:*:*:*:*:*:*", "matchCriteriaId": "9FAB8933-0A70-437C-9190-24B03C96E4C6"}, {"vulnerable": true, "criteria": "cpe:2.3:a:siemens:sinema_remote_connect_server:3.2:sp3:*:*:*:*:*:*", "matchCriteriaId": "866C3491-9238-436C-A096-B52FD8B4E659"}]}]}], "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-626856.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}