{"id":"CVE-2023-3181","state":"PUBLISHED","title":"Insecure Permissions in Splashtop Software Updater","description":"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’s 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.","publishedAt":"2024-01-25T15:22:47.828Z","updatedAt":"2025-06-03T18:21:59.225Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Google"},"assigner":"Google","products":["Splashtop Splashtop Software Updater"],"affected":[{"vendor":"Splashtop","product":"Splashtop Software Updater","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.5.6.21","versionType":"custom"}]}],"references":["https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md"],"weaknesses":["CWE-379"],"ingestedAt":"2026-10-29T20:06:08.715Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/3xxx/CVE-2023-3181.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-3181","state":"PUBLISHED","datePublished":"2024-01-25T15:22:47.828Z","dateUpdated":"2025-06-03T18:21:59.225Z","assignerShortName":"Google","assignerOrgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateReserved":"2023-06-09T09:44:05.431Z"},"containers":{"cna":{"title":"Insecure Permissions in Splashtop Software Updater","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’s 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."}],"affected":[{"vendor":"Splashtop","product":"Splashtop Software Updater","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.5.6.21","versionType":"custom"}]}],"references":[{"url":"https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md"}],"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":{"shortName":"Google","orgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateUpdated":"2024-01-25T15:22:47.828Z"},"impacts":[{"capecId":"CAPEC-165","descriptions":[{"lang":"en","value":"CAPEC-165 File Manipulation"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T06:48:08.297Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-06-03T18:21:45.344343Z","id":"CVE-2023-3181","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-03T18:21:59.225Z"}}]}}}