CVE-2021-25677

{"id": "CVE-2021-25677", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "productcert@siemens.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2021-04-22T21:15:10.207", "references": [{"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf", "source": "productcert@siemens.com"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf", "tags": ["Patch", "Vendor Advisory"], "source": "productcert@siemens.com"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf", "tags": ["Patch", "Vendor Advisory"], "source": "productcert@siemens.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-330"}]}, {"type": "Secondary", "source": "productcert@siemens.com", "description": [{"lang": "en", "value": "CWE-330"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), SIMOTICS CONNECT 400 (All versions >= V0.5.0.0 < V1.0.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS client does not properly randomize DNS transaction IDs. That could allow an attacker to poison the DNS cache or spoof DNS resolving."}, {"lang": "es", "value": "Se ha identificado una vulnerabilidad en Nucleus NET (Todas las versiones), Nucleus ReadyStart V3 (Todas las versiones anteriores a la versi\u00f3n V2017.02.3), Nucleus ReadyStart V4 (Todas las versiones anteriores a la versi\u00f3n V4.1.0), Nucleus Source Code (Versiones que incluyen los m\u00f3dulos DNS afectados), SIMOTICS CONNECT 400 (Todas las versiones anteriores a la versi\u00f3n V0.5.0.0), SIMOTICS CONNECT 400 (Todas las versiones posteriores o iguales a la versi\u00f3n V0.5.0.0 anteriores a la versi\u00f3n V1.0.0). El cliente DNS no aleatoriza correctamente los ID de las transacciones DNS. Esto podr\u00eda permitir a un atacante envenenar la cach\u00e9 DNS o falsificar la resoluci\u00f3n DNS"}], "lastModified": "2023-08-08T10:15:12.367", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simotics_connect_400:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "48BFF9EF-D1C1-4107-8D1E-51315C03FFF0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simotics_connect_400_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "374052C8-5A98-4404-B029-72D2404A7036", "versionStartIncluding": "0.5.0.0"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A987CFB-4A41-4F82-8C7F-31DE8F0650DE"}, {"criteria": "cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C2F36C9F-E4F4-4678-B82D-361F4818B66C", "versionEndExcluding": "2017.02.4"}, {"criteria": "cpe:2.3:a:siemens:nucleus_readystart_v4:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B35FDE44-BE25-431D-B2EE-195ACC5A606C", "versionEndExcluding": "4.1.0"}, {"criteria": "cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53A38C64-612A-4BC5-83D5-D3FA1C90E0F7"}], "operator": "OR"}]}], "sourceIdentifier": "productcert@siemens.com"}