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CVE-2021-43973

Estado: ModificadaAlta (8.8)—

An unrestricted file upload vulnerability in /UploadPsIcon.jsp in SysAid ITIL 20.4.74 b10 allows a remote authenticated attacker to upload an arbitrary file via the file parameter in the HTTP POST body. A successful request returns the absolute, server-side filesystem path of the uploaded file.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Sysaid — Sysaid

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-43973",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-01-11T20:15:07.667",
  "references": [
    {
      "url": "https://github.com/atredispartners/advisories/blob/master/ATREDIS-2021-0002.md",
      "tags": [
        "Broken Link"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/atredispartners/advisories/blob/master/ATREDIS-2022-0001.md",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.sysaid.com/it-service-management-software/incident-management",
      "tags": [
        "Product"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/atredispartners/advisories/blob/master/ATREDIS-2021-0002.md",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/atredispartners/advisories/blob/master/ATREDIS-2022-0001.md",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.sysaid.com/it-service-management-software/incident-management",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An unrestricted file upload vulnerability in /UploadPsIcon.jsp in SysAid ITIL 20.4.74 b10 allows a remote authenticated attacker to upload an arbitrary file via the file parameter in the HTTP POST body. A successful request returns the absolute, server-side filesystem path of the uploaded file."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de carga de archivos sin restricciones en el archivo /UploadPsIcon.jsp en SysAid ITIL versión 20.4.74 b10, permite a un atacante remoto autenticado cargar un archivo arbitrario por medio del parámetro file en el cuerpo HTTP POST. Una petición con éxito devuelve la ruta absoluta del sistema de archivos del lado del servidor del archivo cargado"
    }
  ],
  "lastModified": "2026-06-17T04:11:43.190",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sysaid:sysaid:20.4.74:b10:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7E42FC83-655D-4C66-8B6F-759B3C164D07"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}