{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-3181", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "state": "PUBLISHED", "assignerShortName": "Google", "dateReserved": "2023-06-09T09:44:05.431Z", "datePublished": "2024-01-25T15:22:47.828Z", "dateUpdated": "2024-08-02T06:48:08.297Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Splashtop Software Updater", "vendor": "Splashtop", "versions": [{"lessThan": "1.5.6.21", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The C:\\Program Files (x86)\\Splashtop\\Splashtop Software Updater\\uninst.exe process creates a folder at C:\\Windows\\Temp~nsu.tmp and copies itself to it as Au_.exe. The C:\\Windows\\Temp~nsu.tmp\\Au_.exe file is automatically launched as SYSTEM when the system reboots or when a standard user runs an MSI repair using Splashtop Streamer\u2019s Windows Installer. Since the C:\\Windows\\Temp~nsu.tmp folder inherits permissions from C:\\Windows\\Temp and Au_.exe is susceptible to DLL hijacking, standard users can write a malicious DLL to it and elevate their privileges."}], "value": "The C:\\Program Files (x86)\\Splashtop\\Splashtop Software Updater\\uninst.exe process creates a folder at C:\\Windows\\Temp~nsu.tmp and copies itself to it as Au_.exe. The C:\\Windows\\Temp~nsu.tmp\\Au_.exe file is automatically launched as SYSTEM when the system reboots or when a standard user runs an MSI repair using Splashtop Streamer\u2019s Windows Installer. Since the C:\\Windows\\Temp~nsu.tmp folder inherits permissions from C:\\Windows\\Temp and Au_.exe is susceptible to DLL hijacking, standard users can write a malicious DLL to it and elevate their privileges."}], "impacts": [{"capecId": "CAPEC-165", "descriptions": [{"lang": "en", "value": "CAPEC-165 File Manipulation"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-379", "description": "CWE-379: Creation of Temporary File in Directory with Insecure Permissions", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2024-01-25T15:22:47.828Z"}, "references": [{"url": "https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md"}], "source": {"discovery": "UNKNOWN"}, "title": "Insecure Permissions in Splashtop Software Updater", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T06:48:08.297Z"}, "title": "CVE Program Container", "references": [{"url": "https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md", "tags": ["x_transferred"]}]}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:splashtop:software_updater:*:*:*:*:*:*:*:*", "matchCriteriaId": "5B171E7A-307B-4342-8DC8-662D3AC42894", "versionEndIncluding": "1.5.6.21", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The C:\\Program Files (x86)\\Splashtop\\Splashtop Software Updater\\uninst.exe process creates a folder at C:\\Windows\\Temp~nsu.tmp and copies itself to it as Au_.exe. The C:\\Windows\\Temp~nsu.tmp\\Au_.exe file is automatically launched as SYSTEM when the system reboots or when a standard user runs an MSI repair using Splashtop Streamer\u2019s Windows Installer. Since the C:\\Windows\\Temp~nsu.tmp folder inherits permissions from C:\\Windows\\Temp and Au_.exe is susceptible to DLL hijacking, standard users can write a malicious DLL to it and elevate their privileges."}, {"lang": "es", "value": "El proceso C:\\Program Files (x86)\\Splashtop\\Splashtop Software Updater\\uninst.exe crea una carpeta en C:\\Windows\\Temp~nsu.tmp y se copia en ella como Au_.exe. El archivo C:\\Windows\\Temp~nsu.tmp\\Au_.exe se inicia autom\u00e1ticamente como SISTEMA cuando el sistema se reinicia o cuando un usuario est\u00e1ndar ejecuta una reparaci\u00f3n de MSI utilizando el instalador de Windows de Splashtop Streamer. Dado que la carpeta C:\\Windows\\Temp~nsu.tmp hereda permisos de C:\\Windows\\Temp y Au_.exe es susceptible al secuestro de DLL, los usuarios est\u00e1ndar pueden escribirle una DLL maliciosa y elevar sus privilegios."}], "id": "CVE-2023-3181", "lastModified": "2024-02-03T01:34:52.677", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "cve-coordination@google.com", "type": "Secondary"}]}, "published": "2024-01-25T16:15:07.400", "references": [{"source": "cve-coordination@google.com", "tags": ["Third Party Advisory"], "url": "https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md"}], "sourceIdentifier": "cve-coordination@google.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-379"}], "source": "cve-coordination@google.com", "type": "Secondary"}]}

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