{
  "id": "CVE-2022-4149",
  "sourceIdentifier": "psirt@netskope.com",
  "published": "2023-06-15T07:15:08.710",
  "lastModified": "2023-06-30T00:08:31.660",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The Netskope client service (prior to R96) on Windows runs as NT AUTHORITY\\SYSTEM which writes log files to a writable directory (C:\\Users\\Public\\netSkope) for a standard user. The files are created and written with a SYSTEM account except one file (logplaceholder) which inherits permission giving all users full access control list. Netskope client restricts access to this file by allowing only read permissions as a standard user. Whenever the Netskope client service restarts, it deletes the logplaceholder and recreates, creating a race condition, which can be exploited by a malicious local user to create the file and set ACL permissions on the file. Once the file is created by a malicious user with proper ACL permissions, all files within C:\\Users\\Public\\netSkope\\ becomes modifiable by the unprivileged user. By using Windows pseudo-symlink, these files can be pointed to other places in the system and thus malicious users will be able to elevate privileges.\n"
    }
  ],
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          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 1.0,
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          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
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          "integrityImpact": "HIGH",
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          "baseScore": 7.0,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 1.0,
        "impactScore": 5.9
      }
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    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
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      "source": "psirt@netskope.com",
      "type": "Secondary",
      "description": [
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          "lang": "en",
          "value": "CWE-367"
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  "configurations": [
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  "references": [
    {
      "url": "https://www.netskope.com/company/security-compliance-and-assurance/security-advisories-and-disclosures/netskope-security-advisory-nskpsa-2023-002",
      "source": "psirt@netskope.com",
      "tags": [
        "Vendor Advisory"
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    }
  ]
}