fkie_cve-2023-3181
Vulnerability from fkie_nvd
Published
2024-01-25 16:15
Modified
2025-08-14 14:52
Summary
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.



{
  "configurations": [
    {
      "nodes": [
        {
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              "criteria": "cpe:2.3:a:splashtop:mirroring360_receiver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6563A7D7-1B53-45F6-889E-5268473A0C1D",
              "versionEndExcluding": "2.4.0.1",
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              "versionEndExcluding": "3.5.8.0",
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  ],
  "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": "2025-08-14T14:52:30.797",
  "metrics": {
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        "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "cve-coordination@google.com",
        "type": "Secondary"
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          "confidentialityImpact": "HIGH",
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-01-25T16:15:07.400",
  "references": [
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      "source": "cve-coordination@google.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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  "sourceIdentifier": "cve-coordination@google.com",
  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "NVD-CWE-Other"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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