{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"cveId": "CVE-2023-4489", "assignerOrgId": "030b2754-1501-44a4-bef8-48be86a33bf4", "state": "PUBLISHED", "assignerShortName": "Silabs", "dateReserved": "2023-08-23T04:17:01.960Z", "datePublished": "2023-12-14T23:00:29.693Z", "dateUpdated": "2023-12-14T23:00:38.921Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "affected", "product": "Z/IP Gateway SDK", "vendor": "silabs.com", "versions": [{"lessThanOrEqual": "7.18.3", "status": "affected", "version": "0", "versionType": "LessThan"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "\n\n\n\n<span style=\"background-color: rgb(255, 255, 255);\">The first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. </span><span style=\"background-color: rgb(255, 255, 255);\">This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.</span>\n\n<table><tbody><tr><td> </td></tr></tbody></table>\n\n"}], "value": "\n\n\nThe first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.\n\n \n\n"}], "impacts": [{"capecId": "CAPEC-59", "descriptions": [{"lang": "en", "value": "CAPEC-59 Session Credential Falsification through Prediction"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-908", "description": "CWE-908 Use of Uninitialized Resource", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "030b2754-1501-44a4-bef8-48be86a33bf4", "shortName": "Silabs", "dateUpdated": "2023-12-14T23:00:38.921Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000buWj0QAE?operationContext=S1"}, {"url": "https://github.com/SiliconLabs/gecko_sdk"}], "source": {"discovery": "UNKNOWN"}, "title": "Z/IP Gateway Use of Uninitialized PRNG when Generating S0 Encryption Key", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:silabs:z\\/ip_gateway_sdk:*:*:*:*:*:*:*:*", "matchCriteriaId": "4D5AB8BA-E003-4066-B60C-D63034DAF6ED", "versionEndIncluding": "7.18.03", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "\n\n\nThe first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.\n\n \n\n"}, {"lang": "es", "value": "La primera clave de cifrado S0 se genera con un PRNG no inicializado en productos Z/IP Gateway que ejecutan Silicon Labs Z/IP Gateway SDK v7.18.3 y versiones anteriores. Esto hace que la primera clave S0 generada al inicio sea predecible, lo que potencialmente permite la predicci\u00f3n de claves de red y el acceso no autorizado a la red S0."}], "id": "CVE-2023-4489", "lastModified": "2023-12-28T20:26:06.050", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.5, "impactScore": 5.9, "source": "product-security@silabs.com", "type": "Secondary"}]}, "published": "2023-12-14T23:15:07.400", "references": [{"source": "product-security@silabs.com", "tags": ["Third Party Advisory"], "url": "https://github.com/SiliconLabs/gecko_sdk"}, {"source": "product-security@silabs.com", "tags": ["Permissions Required"], "url": "https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000buWj0QAE?operationContext=S1"}], "sourceIdentifier": "product-security@silabs.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-908"}], "source": "product-security@silabs.com", "type": "Secondary"}]}

{}