FKIE_CVE-2023-42757

Vulnerability from fkie_nvd - Published: 2024-05-07 18:15 - Updated: 2026-06-17 06:24
Severity
4.2 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
Summary
Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling.
References
cve@mitre.orghttps://github.com/SafeBreach-Labs/MagicDot
cve@mitre.orghttps://www.blackhat.com/asia-24/briefings/schedule/#magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces-36561
cve@mitre.orghttps://www.safebreach.com/blog/magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces/
af854a3a-2127-422b-91ae-364da2661108https://github.com/SafeBreach-Labs/MagicDot
af854a3a-2127-422b-91ae-364da2661108https://www.blackhat.com/asia-24/briefings/schedule/#magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces-36561
af854a3a-2127-422b-91ae-364da2661108https://www.safebreach.com/blog/magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Process Explorer before 17.04 allows attackers to make it functionally unavailable (a denial of service for analysis) by renaming an executable file to a new extensionless 255-character name and launching it with NtCreateUserProcess. This can occur through an issue in wcscat_s error handling."
    },
    {
      "lang": "es",
      "value": "Process Explorer anterior a 17.04 permite a los atacantes hacerlo funcionalmente no disponible (una denegaci\u00f3n de servicio para an\u00e1lisis) cambiando el nombre de un archivo ejecutable a un nuevo nombre sin extensi\u00f3n de 255 caracteres y ejecut\u00e1ndolo con NtCreateUserProcess. Esto puede ocurrir debido a un problema en el manejo de errores de wcscat_s."
    }
  ],
  "id": "CVE-2023-42757",
  "lastModified": "2026-06-17T06:24:27.217",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.6,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-42757",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-05-16T18:14:17.789041Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-05-07T18:15:08.033",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/SafeBreach-Labs/MagicDot"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.blackhat.com/asia-24/briefings/schedule/#magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces-36561"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.safebreach.com/blog/magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://github.com/SafeBreach-Labs/MagicDot"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.blackhat.com/asia-24/briefings/schedule/#magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces-36561"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.safebreach.com/blog/magicdot-a-hackers-magic-show-of-disappearing-dots-and-spaces/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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